The Major League Baseball Players who wear Number 20 as their Number on their Team Uniforms are Greg Norton of the Arizona Diamondbacks, Kevin Youkilis of the Boston Red Sox, Carlos Quentin of the Chicago White Sox, David Dellucci of the Cleveland Indians, Chris Iannetta of the Colorado Rockies, Juan Rivera of the Los Angeles Angels, Matt Tolbert of the Minnesota Twins, Steve Holm of the San Francisco Giants, Denny Stark of the Seattle Mariners, Brandon McCarthy of the Texas Rangers and Rod Barajas of the Toronto Blue Jays, and also Jorge Posada of the New York Yankees.
Frank Robinson wore number 20 for the Baltimore Orioles.
Updated answer: Here are players that have had their #20 retired by their respected teams.
Frank RobinsonOrioles and Reds
Major league baseball players
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
Charlie Gehringer Derek Jeter Leo Durocher