The Memphis Grizzlies signed guard Ray McCallum and center Alex Stepheson to 10-day contracts Saturday pursuant to the NBA's hardship rule.McCallum averaged 2.2 points, 1.0 rebound and 1.1 assists in 8.3 minutes over 31 games with the San Antonio Spurs this season before he was waived on Feb. 29.Stepheson is averaging 15.9 points, 13.8 rebounds and 1.35 blocks in 34.2 minutes in 31 games for the NBA Development League's Iowa Energy this season. His rebounding average is a D-League high and he leads the league in double-doubles (26). He also played three games with the Los Angeles Clippers.

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.