The only player in Baseball to still wear number 42 is Mariano Rivera. After Mariano retires, the number 42 will never again be issued in Major League Baseball.
Many players have worn #44 over the years, but perhaps the most famous player to wear #44 was Hank Aaron, whose 755 home runs are second most all 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
None of the players that played in the '95 Major League Baseball World Series regardless of being from the National League Champion; Atlanta Braves or the Cleveland Indians are currently playing with any of the Major League Baseball teams in 2014.