Tim Duncan, KG,
There have been 243 players to wear 21 as a number in the NBA or ABA at one point. Some current players are: Tim Duncan, Hakim Warrick and Thadeus Young.
No current NBA players wear number 28.
There are numerous players who wore the number 4. Notable players are Chris Bosh, Anthony Randolph and Kenyon Martin.
There has been no present or past NBA or ABA players who have worn the jersey number 87.
There are no players in the nba or any others teams because you can't symbolise it.