Dodgers manager Don Mattingly recounts his concussion as a player, caused by Rex Hudler

In the wake up Yasmani Grandal’s concussion sustained Friday night against the San Diego Padres, Dodgers manager Don Mattingly recounted when he sustained a concussion as a player with the New York Yankees.

It involved breaking up a double play, getting hit in the head by Rex Hudler and a funny story about Yankees trainer Steve Donohue.

Mattingly stayed in the game but admitted he had been knocked out. The new rules for a concussion by Major League Baseball are designed to protect players from concussions. Grandal is on the seven-day disabled list to give him time to recover.