The only active Baseball player to wear the number 42 is Mariano Rivera of The Yankees. On April 15 1997, it was decided that to honor Jackie Robinson, the number 42 would be retired throughout baseball. Players who wore the number at the time were grandfathered in, and Mariano Rivera is the last player remaining from that time.
Major league baseball players
Tim Lincecum
Alex Rodriguez.
no
major league baseball is the hightest baseball league with the best players
Major League Baseball Players Alumni Association was created in 1982.
there are not a set number
There are 25 players on a major league roster
Currently Dustin Pedroia is number 15 for the Red Sox.
There are 30 Major League Baseball teams. Each has 25 players, so there are 750 players in the Major Leagues. From September 1 through the end of the regular season (usually the first Sunday in October) teams can expand their roster to 40 players, so during that period there can be 1,200 Major League Baseball players. Teams also have 10 players on their A, AA and AAA minor league affiliates
Yes
Charlie Gehringer Derek Jeter Leo Durocher