Most teams carry a starting 2nd baseman, plus one or two utility infielders. So, somewhere between 60 and 90.
30 teams
The Negro leagues were US professional baseball leagues. The term is usually used to include 7 leagues, also called "Negro Major Leagues" which began in 1920.
To many to count
The 2011 season is his 18th as a major league player.
As far as I know, there are two major ones in the US.
About 1500
5 years
Robinson did not pitch in the major leagues.
32 football teams NFL
A total of nine. One catcher. One pitcher. One first basemen. One second basemen. One third basemen. One shortstop. One right fielder. One center fielder. One left fielder.In a softball game there are 18 players. Each team has one of the above mentioned.
9 players, pitcher, catcher, first, second third basemen, shortstop, right left and center fielders.
Norway, the town too small to keep a high school, has sent three players to the major leagues and several to the minor leagues.