Question: The Cleveland Cavaliers first began play in the NBA in 1970, as an expansion team under the ownership of Nick Mileti, Jerry Tomko, the father of future Major League Baseball pitcher Brett Daniel Tomko, submitted the winning entry to name the team the "Cavaliers" through a competition sponsored by "The Plain Dealer", Tomko is an American former professional baseball pitcher, played in which league?
Context: Chan Ho Park (Korean: 박찬호 ; ] ; born June 30, 1973) is a South Korean former professional baseball pitcher.  He played for the Los Angeles Dodgers, Texas Rangers, San Diego Padres, New York Mets, Philadelphia Phillies, New York Yankees, and Pittsburgh Pirates of Major League Baseball (MLB), the Orix Buffaloes of Nippon Professional Baseball (NPB), and the Hanwha Eagles of the KBO League.  He was the first South Korean-born player in major league history.  Park has the most career wins, 124, of any Asian-born pitcher in history.  He passed Hideo Nomo for the most ever by an Asian-born pitcher in 2010.  He is 6'2" (188 cm) tall and weighs 210 lbs (95 kg). Brett Daniel Tomko (born April 7, 1973) is an American former professional baseball pitcher.  He played in Major League Baseball (MLB) for the Cincinnati Reds, San Diego Padres, Seattle Mariners, St. Louis Cardinals, San Francisco Giants, Los Angeles Dodgers, New York Yankees, Oakland Athletics, Texas Rangers, and Kansas City Royals. The 1970 NBA Expansion Draft was the fifth expansion draft of the National Basketball Association (NBA).  The draft was held on May 11, 1970, so that the newly founded Buffalo Braves, Cleveland Cavaliers and Portland Trail Blazers could acquire players for the upcoming 1970–71 season.  Buffalo, Cleveland and Portland had been awarded the expansion teams on February 6, 1970.  The Braves later underwent several name changes and relocations before moving to Los Angeles.  They are currently known as the Los Angeles Clippers.  In an NBA expansion draft, new NBA teams are allowed to acquire players from the previously established teams in the league.  Not all players on a given team are available during an expansion draft, since each team can protect a certain number of players from being selected.  In this draft, each of the fourteen other NBA teams had protected seven players from their roster.  After each round, where each of the expansion teams had selected one player each, the existing teams added another player to their protected list.  In the first round, the Braves had the first pick, while the Blazers and the Cavaliers had the second and the third pick respectively.  In the subsequent rounds, the Braves and the Cavaliers exchanged their order of selection, while the Blazers had the second pick throughout the draft.  The draft continued until all three teams had selected eleven unprotected players each, while the existing teams had lost two or three players each. The Cleveland Cavaliers are an American professional basketball team based in Cleveland, Ohio.  The Cavaliers play in the Central Division of the Eastern Conference in the National Basketball Association (NBA).  The team joined the NBA in 1970 as an expansion team and won their first Eastern Conference championship in 2007.  The Cavaliers have played their home games at the Quicken Loans Arena, formerly known as Gund Arena, since 1994.  The Cavaliers are owned by Dan Gilbert, with David Griffin as their general manager.  American R&B-pop singer Usher Raymond is a minority owner. The Cleveland Cavaliers first began play in the NBA in 1970 as an expansion team under the ownership of Nick Mileti.  Jerry Tomko, the father of future Major League Baseball pitcher Brett Tomko, submitted the winning entry to name the team the "Cavaliers" through a competition sponsored by "The Plain Dealer"; supporters preferred it to "Jays", "Foresters" and "Presidents".  Playing their home games at Cleveland Arena under the direction of head coach Bill Fitch, they compiled a league-worst 15–67 record in their inaugural season.  The team hoped to build around the number one 1971 draft pick Austin Carr, who had set numerous scoring records at Notre Dame, but Carr severely injured his leg shortly into his pro career and never was able to realize his potential. Chin-Hui Tsao (; born June 2, 1981) is a Taiwanese former professional baseball pitcher.  He is the second major league player and the first major league pitcher from Taiwan, and like the first, former Los Angeles Dodgers outfielder Chin-Feng Chen, he is a Taiwanese aborigine of Amis ancestry.  He had previously played in Major League Baseball (MLB) for the Colorado Rockies and Dodgers before spending the 2009 season with the Brother Elephants in the Chinese Professional Baseball League (CPBL).  After the 2009 Taiwan Series, Tsao was investigated for game-fixing scandals, although he was ultimately not indicted on February 10, 2010.  Tsao was expelled by CPBL on December 23, 2009.  He has recorded the fastest pitch by a Taiwanese pitcher at 100 mph in 2005. Brett Allen Myers (born August 17, 1980) is an American former professional baseball pitcher.  He played in Major League Baseball (MLB) for the Philadelphia Phillies, Houston Astros, Chicago White Sox, and Cleveland Indians.  Born and raised in Jacksonville, Florida, Myers began his baseball career at the high school level.  From there he progressed to the professional ranks and made his debut in 2002 for the Phillies.  He pitched with the Phillies from 2002–2009, mostly as a starter, but did also close for a time.  He was a World Series champion in 2008 with the Phillies over the Tampa Bay Rays.  After the Phillies, he went on to the Houston Astros and the Chicago White Sox.  On New Year's Day 2013, Myers signed with the Cleveland Indians. Salvatore Anthony Maglie (April 26, 1917 – December 28, 1992) was an American Major League Baseball pitcher and later, a scout and a pitching coach.  He played from 1945 to 1958 for the New York Giants, Cleveland Indians, Brooklyn Dodgers, New York Yankees, and St. Louis Cardinals.  Maglie was known as "Sal the Barber", because he gave close shaves—that is, pitched inside to hitters.  Coincidentally, he also sported a five o'clock shadow look.  He also had the distinction of being one of the few players, and only pitcher, to play for all three New York baseball teams then playing in the city (Maglie's playing career pre-dated the 1962 establishment of the fourth New York major league team, the expansion New York Mets, with whom he was never affiliated).  During a 10-year major league baseball career, Maglie compiled 119 wins, 862 strikeouts, and an 3.15 earned run average. Aaron Daniel Blair (born May 26, 1992) is an American professional baseball pitcher for the Atlanta Braves of Major League Baseball (MLB).  Blair attended Marshall University, where he played baseball for the Marshall Thundering Herd baseball team.  Prior to that, he attended Spring Valley High School in Spring Valley, Nevada and played for the school's baseball team.  The Houston Astros selected him in the 21st round of the 2010 Major League Baseball Draft but decided to go to college instead.  The Arizona Diamondbacks selected Blair with the 36th pick of the 2013 Major League Baseball Draft.  He was traded to the Atlanta Braves by the Diamondbacks as part of a five-player deal announced December 9, 2015. The Cleveland Cavaliers, also known as the Cavs, are an American professional basketball team based in Cleveland, Ohio.  The Cavs compete in the National Basketball Association (NBA) as a member of the league's Eastern Conference Central Division.  The team began play as an expansion team in 1970, along with the Portland Trail Blazers and Buffalo Braves.  Home games were first held at Cleveland Arena from 1970 to 1974, followed by the Richfield Coliseum from 1974 to 1994.  Since 1994, the Cavs have played home games at Quicken Loans Arena in downtown Cleveland, which is shared with the Cleveland Gladiators of the Arena Football League and the Cleveland Monsters of the American Hockey League.  Dan Gilbert has owned the team since March 2005.
Answer: Major League Baseball