Memphis junior forward Wesley Witherspoon was suspended indefinitely Thursday for mocking an assistant coach on the team bus following a loss on Wednesday, according to a source.

Tigers coach Josh Pastner called Witherspoon's suspension an internal matter and declined further comment.

A source said Witherspoon mimicked an assistant coach who had voiced his displeasure over the loss to SMU, going as far as getting on the bus' loudspeakers and doing an impression of the coach.