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Major League Baseball All-Star Game
MLB All-Star Game (Midsummer Classic): annual AL vs NL exhibition since July 6, 1933 at Comiskey Park, created by Arch Ward; AL leads 48-45-3; swing-off tiebreaker first used 2025.
Major League Baseball draft
MLB draft (Rule 4 draft), annual amateur player draft held since June 8, 1965; reverse-standing order, 20 rounds, bonus pools since 2012, top-six lottery since 2023; Rick Monday first pick, 54 drafted Hall of Famers.
Major League Baseball Most Valuable Player Award
MLB Most Valuable Player Award: BBWAA-voted annual honor, one per league since 1931, after the Chalmers Award (1911-14) and League Award (1922-29). 30 voters per league, 14-9-...-1 scoring; Bonds won a record 7.
Major League Baseball Players Association
The Major League Baseball Players Association (MLBPA) is the labor union for players on 40-man Major League rosters and roughly 5,500 Minor League players, founded in 1954 and unionized in 1966.
Major League Baseball postseason
The Major League Baseball postseason, or MLB playoffs, is the annual elimination tournament following MLB's regular season, in which 12 teams play four rounds culminating in the World Series.
Major League Baseball Rookie of the Year Award
MLB Rookie of the Year Award (Jackie Robinson Award): BBWAA-voted honor for the best rookie in each league since 1949; first national winner Jackie Robinson 1947; renamed 1987; 2025 winners Nick Kurtz and Drake Baldwin.
Major League Baseball rosters
Major League Baseball rosters: the 26-man active roster (13-pitcher cap, 28 players from Sept. 1) and the 40-man roster governing options, waivers, Rule 5 protection, service time, and postseason eligibility.
Major League Baseball schedule
Major League Baseball schedule: the 2,430-game, 162-games-per-team regular-season calendar, built by the Commissioner's Office with Sports Scheduling Group; 2023 balanced format (52 division, 64 league, 46 interleague games), rivalry pairings, constraints, history, and travel research.
Major League Baseball tie-breaking procedures
MLB tie-breaking procedures: since 2022, standings ties are settled mathematically (head-to-head, intradivision, intraleague, last-half records) instead of by Game 163 tiebreaker games, which ended with the 12-team playoff expansion.
Major League Baseball transactions
Major League Baseball transactions: the CBA-governed system of trades, free agency, waivers, options, arbitration, and the Rule 5 Draft, plus the 2026 CBA proposals reshaping rosters and free agency.
Major League II
Major League II is a 1994 American sports comedy directed by David S. Ward, starring Charlie Sheen and Tom Berenger, and the sequel to Major League.
Mana Atsumi
Mana Atsumi (渥美万奈, born 1989) is a Japanese softball infielder for Toyota Red Terriers who won gold in women's softball at Tokyo 2020 and at the 2018 Asian Games.
Manager (baseball)
Manager (baseball): the on-field strategic leader of a baseball team, historically called the captain; sets lineups, makes substitutions and pitching changes. Distinguished by uniform dress, rulebook substitution authority, the extinct player-manager role (last: Pete Rose, 1986), and mound-visit limits.
Manny Machado
Manny Machado (Manuel Arturo Machado), born 1992, Padres third baseman, seven-time All-Star; drafted third overall by Orioles in 2012 debut; $350M contract through 2033; 399 career home runs.
Manny Ramirez
Manny Ramirez (Manuel Aristides Ramirez) is a Dominican former baseball outfielder who hit 555 home runs and won World Series titles with the Boston Red Sox in 2004 and 2007.
Manuel Vega
Manuel Vega (Manuel Alberto Vega Tamayo), Cuban pitcher born 1975 in Niquero, Granma; won baseball gold with Cuba at the 2004 Athens Olympics and pitched for Granma, Bayamo.
Marcell Ozuna
Marcell Ozuna, "The Big Bear", Dominican MLB designated hitter born 1990 in Santo Domingo; Marlins 2013-17, Cardinals 2018-19, Braves 2020-25, Pirates 2026; 3x All-Star, 304 career home runs, released by Pittsburgh in August 2026.
Marcus Jensen
Marcus Christian Jensen, born 1972 in Oakland, California, American baseball catcher; 1990 Giants first-round pick, seven MLB teams 1996-2002, 2000 Sydney Olympic gold medalist, later longtime Oakland Athletics coach.
Marcus Semien
Marcus Semien (born 1990) is an MLB second baseman, 2023 World Series champion with the Texas Rangers, now with the New York Mets; three-time MVP vote finisher, 2021 record 45-HR season, two-time Gold Glove winner.
Marcus Stroman
Marcus Stroman (born 1991, Medford, NY), nicknamed Stro-Show or HDMH, is a 5'7" right-handed MLB pitcher, two-time All-Star and 2017 Gold Glove winner; Blue Jays, Mets, Cubs, Yankees; career 90-87, 3.79 ERA.
Marge Schott
Marge Schott (Margaret Unnewehr Schott), Cincinnati businesswoman, owned and operated the Cincinnati Reds 1984-1999, first woman to run an MLB team; won 1990 World Series, twice suspended for racist and anti-Semitic remarks, sold for $67 million in 1999.
Mariano Rivera
Mariano Rivera, Panamanian Yankees closer (1995–2013), all-time saves leader with 652, first unanimous Hall of Fame electee (2019); known for his cutter, 0.70 postseason ERA, five World Series titles.
Mark Appel
Mark Appel, born 1991, Stanford right-handed pitcher taken first overall by the Houston Astros in the 2013 MLB Draft for a $6.35 million bonus; after injuries and a 2018 retirement he debuted in MLB with the Phillies in 2022, a noted draft bust.
Mark Bellhorn
Mark Bellhorn (born 1974) is an American former MLB switch-hitting infielder (1997-2007) who won the 2004 World Series with the Red Sox, hitting ALCS and World Series home runs, and once homered from both sides of the plate in one inning with the Cubs.
Mark Buehrle
Mark Buehrle (born 1979) is a retired MLB left-handed pitcher (2000-2015) for the White Sox, Marlins, and Blue Jays; 214-160, 3.81 ERA, 2007 no-hitter, 2009 perfect game, 2005 World Series champion, four Gold Gloves.
Mark DeRosa
Mark DeRosa (born 1975) is a former MLB utility infielder, 16 seasons, .268, 100 HR, and manager of Team USA at the 2023 and 2026 World Baseball Classics, winning 2023 silver.
Mark Fidrych
Mark Fidrych, "The Bird" (1954-2009), Detroit Tigers pitcher; 1976 AL Rookie of the Year, 19-9, 2.34 ERA, 24 complete games; career ended by undiagnosed torn rotator cuff; died in truck accident.
Mark Grace
Mark Grace (born 1964) is a former MLB first baseman who played for the Chicago Cubs (1988-2000) and Arizona Diamondbacks (2001-2003), led the 1990s in hits (1,754) and doubles (364), won four Gold Gloves, and earned a 2001 World Series ring.
Mark Langston
Mark Langston (born 1960) is a former MLB left-handed pitcher (1984-1999) for the Mariners, Expos, Angels, Padres, and Indians; three-time AL strikeout leader, seven Gold Gloves, half of a 1990 combined no-hitter, traded for Randy Johnson.
Mark Manfredi
Mark Manfredi (Mark Silvio Manfredi, born 2000) is an American left-handed relief pitcher for the Colorado Rockies; drafted 9th round 2023 by Milwaukee from Dayton, traded for Senzatela, MLB debut August 19, 2026.