Walker was called for a flagrant foul after losing his cool and shoving Belga after a rebound play .
Walker suffered an elbow injury earlier in the game after getting entangled with Jireh Ibanes .
Walker , who suffered an elbow injury earlier in the game after getting entangled with Jireh Ibanes , was called for a flagrant foul after losing his cool and shoving Belga after a rebound play .