Dirk Nowitzki leaves with lower back tightness

MEMPHIS -- Dirk Nowitzki left Wednesday's game against Memphis at the 11:09 mark of the second quarter with lower back tightness. His return his questionable.

He started the second quarter, but quickly came out and headed straight for the locker room with head athletic trainer Casey Smith.

Nowitzki was 0-of-1 from the floor with one point, four rebounds and two turnovers in 10 minutes.

With Lamar Odom still away from the team for personal reasons, the Mavs are extremely shallow at power forward. Brian Cardinal replaced Nowitzki. Yi Jianlian was first to replace Nowitzki off the bench in the first quarter.