By Mark Vester

An arrest warrant has been issued for trainer Roger Mayweather. The trainer failed to appear in a Las Vegas court on Friday to face battery and coercion charges. No legal counsel appeared on Mayweather's behalf.

The charges stem from Mayweather's August assault on female boxer Melissa St. Vil. Mayweather was the former trainer of St. Vil and the two had a falling out. He showed up at an apartment [he owned and was renting out] and found St. Vil staying there. When he tried to physically remove her, she defended herself and a violent brawl broke out. When police arrived on the scene, St. Vil was being choked and spitting up blood. She told police that Mayweather harassed her after she ended the training arrangement with him.