LOS ANGELES (AP) Clippers guard Quentin Richardson was placed on the injured list Sunday because of back spasms, and the team signed guard Randy Livingston to a 10-day contract.

Richardson was hurt March 7 against Portland and has missed five of the last six games. He is averaging 17.7 points and 6.4 rebounds.

Livingston played for the CBA's Idaho Stampede, averaging 12.8 points and 4.6 assists.