Question: Swimmer Tricia Duncan is the older sister of Tim Duncan, who professionally played what sport for 19 years
Context: The 1999–2000 NBA season was the Spurs' 24th season in the National Basketball Association, 27th season as the Spurs, and the 33rd season as a franchise.  During the offseason, the Spurs signed free agents Terry Porter and Samaki Walker.  Coming off their first NBA championship, the Spurs were still among the best teams in the West winning 14 of their first 17 games.  They battled for first place in the Midwest Division all season, with Tim Duncan and David Robinson both being selected for the 2000 NBA All-Star Game.  On March 14, the Spurs playoff spirits would get a lift when Sean Elliott, who received a kidney transplant prior to the season returned and played in the final 19 games.  However, as the season wounded down, Duncan suffered a knee injury as the Spurs finished second in the Midwest Division with a 53–29 record.  Without Duncan in the playoffs, the Spurs lost four games in the first round to the 5th-seeded Phoenix Suns.  Following the season, Mario Elie signed as a free agent with the Phoenix Suns, and Jerome Kersey signed with the Milwaukee Bucks. Raymond Twomey "Ray" Duncan (October 23, 1930 – October 9, 2015) was an American entrepreneur and vintner.  Originally involved in oil entrepreneurship in Colorado and founder of Duncan Oil, he was the founder along with Justin Meyer of Silver Oak Cellars in 1972, a successful winery based in the Napa Valley and Alexander Valley.  Today his sons David Duncan and Tim Duncan run Silver Oak Cellars, as well as Twomey Cellars.  Duncan established the Durango Mountain "Purgatory" Ski Resort in 1965 and was chairman of the board for the ski industry organization Colorado Ski Country USA.  He was inducted into the Colorado Ski and Snowboard Hall of Fame in 2006. Patricia "Tricia" Duncan (born August 21, 1973) is a retired swimmer for the U.S. Virgin Islands who participated in the backstroke at the 1988 Summer Olympics.  Duncan finished 34th in the 100 m backstroke and 30th in 200 m backstroke.  She is the older sister of NBA basketball player Tim Duncan.  Duncan attended Swarthmore College. Silver Oak Cellars is a family-owned, California winery dedicated to producing only Cabernet Sauvignon.  Silver Oak was established in 1972 by Ray Duncan and Justin Meyer.  It is currently operated by Ray's sons David Duncan, who serves as the President and CEO, and his brother, Tim Duncan, who serves as Executive Vice President.  Silver Oak has two wineries; one in Oakville in the Napa Valley and one in Geyserville in the Alexander Valley.  The Duncan Family also established Twomey Cellars in 1999, named after Ray Duncan’s mother, where they produce Pinot noir, Merlot and Sauvignon blanc.  Twomey has wineries in Calistoga and Healdsburg. Justin Meyer (born Raymond Meyer, 11 November 19386 August 2002) was an American vintner, enologist, and monk of the Christian Brothers.  He was the founder along with Ray Duncan of Silver Oak Cellars in 1972, a successful winery based in the Napa Valley and Alexander Valley.  Today Duncan's sons David Duncan and Tim Duncan run Silver Oak Cellars, as well as Twomey Cellars, established in 1999.  Meyer sold his share of the company to Duncan in 2001.  One of California's top wine experts, he was President of the American Vineyard Foundation in the 1990s and also held numerous other positions in the wine industry.  The "San Francisco Chronicle" cites Meyer as "one of the legends of the Napa Valley". Tim Duncan (born June 12, 1979) is a former American football placekicker who played in the National Football League (NFL) for the Arizona Cardinals.  He played college football at the University of Oklahoma.  Duncan also played for Kentucky State University in the division II SIAC conference during the 1997 season when he helped the Thoroughbreds win the inaugural Pioneer Bowl.  He transferred to Oklahoma the following season. David Duncan (born 1965) is an American vintner and entrepreneur.  The President and Chief Executive Officer of Duncan Oil, he is also the President and Chief Executive Officer of Silver Oak Cellars and Managing Partner of Twomey Cellars, successful wineries in northern California, operating in the Napa, Alexander and Russian River Valleys.  He is the son of late Ray Duncan, an oil and wine entrepreneur who co-founded Silver Oak in 1972 with Justin Meyer.  Silver Oak is a family-run and owned business, and his brother Tim Duncan is Executive Vice President of the company. " ColoradoBiz" says that David Duncan is "as much a hands-on winery president as he can be", as president of a winery that has "reached cult status" for its Cabernet Sauvignon production. Timothy Theodore Duncan (born April 25, 1976) is an American retired professional basketball player who played his entire 19-year career with the San Antonio Spurs of the National Basketball Association (NBA).  Widely considered to be the greatest power forward of all time, he is a five-time NBA champion, two-time NBA MVP, three-time NBA Finals MVP, NBA All-Star Game MVP and NBA Rookie of the Year.  He is also a 15-time NBA All-Star and the only player to be selected to both the All-NBA and All-Defensive Teams in all of his first 13 seasons. The 1998 NBA All-Star Game was the 48th edition of the North American National Basketball Association All-Star Game.  The event was held at Madison Square Garden in New York City.  The East won the game 135–114.  This game was the All-Star Game debut of Kobe Bryant, the youngest all-star in NBA history at 19 years of age, and rookie Tim Duncan.  Bryant had a team-high 18 points.  Michael Jordan earned MVP honors, scoring 23 points, grabbing 6 rebounds, and dishing out 8 assists despite having the flu.  This was Jordan's third MVP award.The Game featured four all-stars from the Los Angeles Lakers.  The Western Conference was coached by George Karl from the Seattle SuperSonics and the Eastern Conference was coached by Larry Bird of the Indiana Pacers.  This marks the only All-Star game to feature both Kobe Bryant, who was the youngest player in NBA history to be in the all-star game and Michael Jordan in which Jordan was with the Chicago Bulls.  Jordan came out of retirement one final time in 2001 and played two more seasons (and selected to the All-Star team both years) for the Washington Wizards.  Grant Hill and Michael Jordan shot the best field goal percentages this game when comparing players who shot ten or more shots.  Grant Hill was 7/11 from the field and he knocked down a three (.636%).  Michael Jordan was 10/18 from the field and he also knocked down one three (.556%). The Twin Towers is a name applied to the combination of Tim Duncan and David Robinson playing as the frontcourt of the San Antonio Spurs from 1997–2003.  Both players were selected first overall by the San Antonio Spurs in their draft years with Robinson's selection coming in the 1987 NBA draft and Duncan's selection coming ten years later and both played their entire careers with the San Antonio Spurs.
Answer: basketball