Miami Marlins Pitcher Dan Jennings Clobbered by Screaming Line Drive Off Head [VIDEO]

Here's another reminder how frightening sports injuries can be.

Not even a week after Paul George went down with a brutal broken leg, Miami Marlins pitcher Dan Jennings suffered a blow to the head off the bat of Pittsburgh Pirates shortstop Jordy Mercer on Thursday night.

Jennings suffered a concussion. As you can see in the video, he looked dazed after the incident.

Later, Jennings updated his condition: