The Memphis Grizzlies announced Saturday they waived forward Sampson Carter, guard/forward Yakhouba Diawara, guard Lazeric Jones and forward/center Alex Stepheson.Memphis reduced its roster to 16 players.Carter averaged 1.0 point and 0.8 rebounds in 6.0 minutes over six preseason games.Diawara averaged 2.3 points and 1.7 rebounds in 16.0 minutes over six preseason contests.Jones, in six preseason appearances, averaged 5.8 points and 1.7 assists in 14.3 minutes.In three preseason games, Stepheson averaged 2.3 points and 6.0 rebounds in 9.2 minutes.