20 seasons is probably more than enough for many NBA players, but not Kevin Garnett.
It looks like KG wants to walk out of the league the right way and for a full 82 games with the Minnesota Timberwolves, as he's considering playing for the 2015-16 season next year.
From ESPN's Marc Stein:
https://twitter.com/ESPNSteinLine/status/587594737634246656