Kevin Harlan has a history of making great calls. During the San Francisco 49ers and LA Ram's game on Monday Night Football, Harlan tacked on another great call to his list of amazing calls. 

The 49ers were in the midst of a blowout victory over the LA Rams when a 49ers fan ran onto the field. The fan took off his shirt and started running around on the field. Harlan wasted no time making a hilarious play-by-play call as the fan ran down the field. 

This impromptu call is definitely one of his best calls to date.