Rockies center-fielder Charlie Blackmon was knocked off his feet after taking a foul ball off of his helmet while in the on deck circle.  He seemed to be okay and remained in the game.

Looks like the helmet did its job.  It’s going to take more than a foul ball to the helmet to get Blackmon out of the game.  

Good thing there isn’t a real concussion evaluation in the MLB.  He would have been in the blue tent and then sent to the locker room in the NFL.  In the MLB they just talk to you and take a look at the helmet.