Question: Which two sports do Showdown in Chinatown and Steve Nash bring to mind?

full_context: Document 1: 2015 Lunar New Year Cup: 2015 Lunar New Year Cup (), also known as the Lunar New Year AET Cup 2015 () due to sponsorship reason, is the annual football event held in Hong Kong to celebrate the Chinese New Year. South China of Hong Kong Premier League were authorised by the Hong Kong Football Association to hold the 2015 event; and New York Cosmos of North American Soccer League were invited to participate. It was the first time an American football team had joined this event. The football march between these two teams was played in Hong Kong Stadium on 19 February 2015, the Chinese New Year Day. The Cup was won by New York Cosmos after a penalty shootout.
Document 2: Chris Paul: Christopher Emmanuel Paul (born May 6, 1985) is an American professional basketball player for the Houston Rockets of the National Basketball Association (NBA). He has won the NBA Rookie of the Year Award, an NBA All-Star Game Most Valuable Player Award, two Olympic gold medals, and led the NBA in assists four times and steals six times. He has also been selected to nine NBA All-Star teams, eight All-NBA teams, and nine NBA All-Defensive teams.
Document 3: Puerto Rico MLS-USL Challenge: The Puerto Rico USL-MLS Challenge was a preseason invitational football tournament featuring the host club Puerto Rico Islanders, two clubs from Major League Soccer and a USL First Division club. The tournament was played in Juan Ramón Loubriel Stadium in Bayamon, Puerto Rico. The first edition features the MLS clubs: Los Angeles Galaxy and F.C. Dallas, and USL clubs: Puerto Rico Islanders and Rochester Rhinos. Los Angeles Galaxy won the tournament after 2-1 win over the Puerto Rico Islanders. The tournament was again celebrated in 2009 featuring only a match between MLS club D.C. United and the Puerto Rico Islanders. D.C. United won the tournament after a 2-1 win.
Document 4: NBA All-Star Weekend Shooting Stars Competition: The Degree Shooting Stars competition was a National Basketball Association All-Star Weekend contest held on the Saturday before the All-Star Game. It involved a current NBA player, a WNBA player, and a retired NBA player competing together in a shooting competition. From 2004 to 2012, players represented their teams' cities. Starting in 2013, the NBA player chose both a WNBA player and the retired player to compete on his team. The competition itself was time based, involving shooting from four locations of increasing difficulty and making all four shots in sequential order. The first shot was a 10-ft bank shot from the right angle, the second was straight-on jump shot from the top of the key, the third was an NBA three-point shot from the left angle and the fourth is a half-court shot. There was a two-minute time limit for each attempt and the top two times advanced to a head-to-head final round. The event was held each All-Star Weekend from 2003–04. In 2007–08, Team San Antonio became the event's first two-time winner. Detroit followed suit in 2008–09 with their second title. In 2005–06, Team San Antonio set the course record with 25.1 seconds. In 2010-11, Team Atlanta became the first team to win the event with a time over one minute. From 2013-15, Team Bosh became the first back-to-back and three time winner. Starting with the 2016 NBA All-Star Game, the contest has been retired and removed from All Star Weekend.
Document 5: 2012–13 Phoenix Suns season: The 2012–13 NBA season was the Suns' 45th season in the NBA. This season was the first season since the 2003–04 season that the Suns were without star point guard and former two-time MVP Steve Nash. Ironically enough, Nash was sign-and-traded to the rival Los Angeles Lakers despite Nash making earlier statements that he couldn't really envision himself being an L.A. Laker. Another fan favorite, Grant Hill, would also leave for Los Angeles in this season, but he would sign with the L.A. Clippers instead. By technicality, the player who held the most playing experience for the Suns this season was Jermaine O'Neal.
Document 6: Steve Nash: Stephen John Nash, OC, OBC (born February 7, 1974), is a Canadian former professional basketball player who played in the National Basketball Association (NBA). He was an eight-time NBA All-Star and a seven-time All-NBA selection. Twice, Nash was named the NBA Most Valuable Player while playing for the Phoenix Suns. He currently serves as general manager of the Canadian national team and as a player development consultant for the Golden State Warriors.
Document 7: Stephen Curry: Wardell Stephen Curry II (born March 14, 1988) is an American professional basketball player for the Golden State Warriors of the National Basketball Association (NBA). Many players and analysts have called him the greatest shooter in NBA history. In 2014–15, Curry won the NBA Most Valuable Player Award and led the Warriors to their first championship since 1975. The following season, he became the first player in NBA history to be elected MVP by a unanimous vote and to lead the league in scoring while shooting above 50–40–90. That same year, the Warriors broke the record for the most wins in an NBA season. Curry helped the Warriors return to the NBA Finals for a third straight year in 2017, where he won his second NBA championship.
Document 8: 9-man: 9-man (also nine-man, nineman, 9man) is a team sport with some characteristics of volleyball utilizing nine players per side and a slightly larger court (10 by 20 meters). Historically, the sport was played by Chinese immigrants to the US, who predominantly hailed from Toisan (Taishan) city in Guangdong province of China. In the late 1930s the sport was used as a means to socially connect the laborers in Chinatowns across the United States. Teams from Boston and Providence, RI held the first organized nine-man tournament in 1938 which later spread to Chinatowns in other large US and Canadian cities. The North American version of 9-Man continues to grow today with a popular rotating tournament called the NACIVT uniting thousands of players and spectators each September over Labor Day weekend. It is unclear whether the sport was also played in the Asian Games in 1958 and in 1962 held in Tokyo and Jakarta, respectively, or if they were simply playing volleyball with nine players. The sport has not made a reappearance in the Asian Games since, and many believe that the rules of nine-man are exclusive to the community that plays in North America. The sport is the subject of an award-winning documentary called 9-Man that was completed in 2014 and had its world premiere at IFFBoston on April 27, 2014 at 1pm. The film was broadcast on the PBS World Channel series America ReFramed on May 5, 2015.
Document 9: Chris Mullin (basketball): Christopher Paul Mullin (born July 30, 1963) is an American retired professional basketball player and current head coach of the St. John's Red Storm. He previously served as special advisor for the Sacramento Kings and general manager of the Golden State Warriors. He is a two-time Olympic Gold medalist and a two-time Naismith Memorial Basketball Hall of Fame inductee (in 2010 as a member of the 1992 United States men's Olympic basketball team ("The Dream Team"), and in 2011 for his individual career).
Document 10: Le'Bryan Nash: Le'Bryan Nash (born June 30, 1992) is an American professional basketball player who last played for the Rio Grande Valley Vipers of the NBA Development League. He played college basketball for the Oklahoma State University.
Document 11: 2004–05 Phoenix Suns season: The 2004–05 NBA season was the 37th for the Phoenix Suns in the National Basketball Association. During the offseason, the Suns re-acquired All-Star guard Steve Nash from the Dallas Mavericks, and signed free agent Quentin Richardson. The Suns got off to a fast start winning 31 of their first 35 games, but then lost six straight afterwards. They finished with the best record in the NBA at 62–20 under head coach Mike D'Antoni. Three members of the team, Nash, Amar'e Stoudemire, and Shawn Marion were all selected for the 2005 NBA All-Star Game. The Suns also gained solid play from Richardson and Joe Johnson. Nash finished the season averaging 11.5 assists per game, while making 50.2% of his field goals and 43.1% of his three-pointers in the regular season. He ended up winning the MVP award. D'Antoni was awarded Coach of the Year, and Bryan Colangelo Executive of the Year.
Document 12: Nike Global Challenge: The Nike Global Challenge is an annual men's prep basketball tournament held in the Portland metropolitan area during the summer. Sponsored by Nike, Inc., games are usually played at Liberty High School in Hillsboro, Oregon. The tournament started in 2007 and has featured high school players such as John Wall, DeMarcus Cousins, Avery Bradley, Austin Rivers, and Anthony Davis. High school-aged players from around the world play on all-star teams for each of the countries represented. The United States makes up three of the eight teams in the sixteen game tournament.
Document 13: Showdown in Chinatown: Showdown in Chinatown is an annual charity soccer match organized by basketball player Steve Nash and soccer player Claudio Reyna to benefit their respective charity foundations. The first edition was a nine-a-side match played on June 25, 2008 while the second edition was an eight-a-side match played on June 24, 2009. Both matches took place at Sara D. Roosevelt Park on the Lower East Side of Manhattan, New York City, and have featured two teams made up of National Basketball Association and international soccer players.
Document 14: National School Scrabble Championship: The National School Scrabble Championship is a Scrabble tournament for 4th-8th graders held annually in North America since 2003. In 2012, 4th graders were allowed to compete for the first time ever. The School Scrabble Championship uses the SSWL dictionary which has offensive words such as "lez" or "jew" omitted. The competition is tournament Scrabble play, in which teams of two play for 25 minutes with digital timers similar to those used in the board game of chess. The time limit was originally 22 minutes for each side until 2012 when the switch was made to coincide with the traditional times of the Adult Nationals. The team with the most wins is determined the winner. If there are multiple teams with the same number of wins, spread is used to break the tie. Matthew Silver of Connecticut became the first competitor to win two consecutive National School Scrabble Championship titles in 2007 and 2008. He accumulated a 14-0 record in those two years. In 2009, for the first time ever, the event was won by a team of 5th graders, Andy Hoang & Erik Salgado of Salem Elementary in North Carolina. They were the last team to finish the tournament with an undefeated record (7-0). Since then, the champion has finished either 6-1 (2010) or 7-1 (2011, 2012, 2013). The winners have often been invited to be on Good Morning America and Jimmy Kimmel Live!. The event has also received recognition from president Barack Obama and NBA superstar Shaquille O'Neal, who are advocates for the game themselves. In 2012, Andy Hoang & Erik Salgado of North Carolina became the first team to win two NSSC titles, their first as 5th graders in 2009, and their second as 8th graders in 2012. The 2013 NSSC was held in Washington D.C. 2013 marked the first time since 2009 that a previous champion will not be competing. In 2010, 2011, and 2012, Andy Hoang, Erik Salgado, Bradley Robbins, and Evan McCarthy were champions that returned. Only Andy Hoang and Erik Salgado were the only ones to repeat during the streak. With Kevin Bowerman and Raymond Gao's win in 2013, North Carolina became the first state to hold 3 National titles (Winning 3 of the last 5 tournaments: 2009, 2012, & 2013), the most of all the states or districts in North America.
Document 15: Challenge of Champions: The "Challenge of Champions" was created to be one of the richest prize money tennis events in the world. Created by Leo E. Fenn III in 1985 as an Invitation Only Tennis Tournament which would feature daily matches which were the equivalent to the Finals of the US Open or Wimbledon. It was usually held before the Masters and invited only the top eight men's tennis players in the world according to their rankings on the ATP poll. In 1985, creator & founder 24-year-old Leo E. Fenn III partnered with 28-year-old Mark Myden to form a company called Special Events Productions. SEP produced the "Challenge of Champions" Tournament which became a major player in professional tennis. These two entrepreneurs became the youngest producers in history of professional tennis. Leo & Mark acquired major fortune 500 corporate sponsors such as AT&T, VISA, Cadillac, Fila Sportswear, DeBeers Diamonds as well as negotiated two days of live weekend television coverage on NBC. Their title sponsorship package sold to AT&T was the largest single vent sponsorship package in professional tennis that year. Leo negotiated with the brand new Thomas Mack Center Arena in Las Vegas to host the inaugural event. The event rights were eventually sold to Pro Serve and concluded following the 1989 Challenge.
ground_truth: Showdown in Chinatown is an annual charity soccer match organized by basketball player Steve Nash