Che mills vs. duane ludwig

The first round began. Oh shit spaced out and didn't watch the start. Mills is on top in side control with three forty of the first round. Mills tried to mount, Ludwig regained guard nicely. Three minutes. Mills landed a left defending an armbar attempt. Mills passed to side control. Ludwig stood to the clinch, looked away, Ludwig is laying on the ground and his knee is hurt. Wait what happened? The fight's over. Wow. Mills knelt beside him respectfully. Oh wow, they were just in the clinch and Ludwig just dropped and pointed at his left knee. Hmm wow... Ludwig's up and the crowd cheers him. Ludwig should simply retire at this point though.