The Dallas Mavericks currently have eight players who will be free agents come July 1 and that can increase to 11 if Al-Farouq Aminu, Monta Ellis and Raymond Felton decline their 2015-16 player options. Out of all their free agents, the player who must be re-signed at all costs is starting center Tyson Chandler, according to Rick Gosselin of The Dallas Morning News.