Carlos Gomez injured himself making a catch:

Minnesota Twins center fielder Carlos Gomez was immobilized and taken from the field on a cart after crashing into the padded wall while making a spectacular catch in the first inning of Friday night's game against the Cleveland Indians.

After a long run, Gomez jumped as he neared the wall and caught Ben Francisco's drive before slamming into it on his right side. He crumpled on the warning track and, while in obvious pain, shoveled the ball to left fielder Delmon Young. As Gomez writhed around grabbing his lower back, Sizemore tagged up and scored all the way from second base.

Gomez remained on the ground for several minutes and was attended to by trainers for both teams before being placed on a backboard and lifted onto a cart.

I hope it's not too serious.