20, according to ESPN.com
There are no current NBA or CBA players who wear the number 59. In fact no one has ever wore the number 59. It is not a common jersey number, as many of the jersey numbers happen to feature lower numbers.
Usually 2 to 3 for a home jersey a away jersey and a alternate jersey (if have one)
25
25 players
Since 2006 231 NAIA players have been drafted in the Summer Amateur Draft.
five baseball players
There Are 750 Pro Baseball Players In The World
It depends, a team might have reserved baseball jerseys from maybe 1984 or 1968 for e.g. So maybe about 5-7 jerseys(3 for minimum, away jersey, home jersey, pre season jersey). In other words, baseball players have around five to seven jerseys. They always have at least three; home, away, and alternate (preseason). In addition, there may be some days where the entire team wears a commemorative jersey. The best players also get an All-Star jersey for the Midsummer Classic. Additionally, baseball players may receive a patch on their jersey. For example, during the 2009 World Series, the Yankees had AL Pennant patches on their shoulder, and the Phillies had NL Pennant patches.
15 players
Nine players.
25 players