"We've got the potential to be teammates so let's squash it right now," DeShields said.
"Obviously it wasn't anything I was trying to do," Klein said. "I just felt terrible. It's not something you want to see."
The count was 0-2. DeShields said he was looking for a slider and instead Klein threw a fastball that sailed up and in.
"It was like a bowling ball," DeShields said. "At first I couldn't feel anything. I was on the ground and I was looking for my teeth. They were all there but I was spitting out blood. The next day my face really swelled up."
T.R. Sullivan is a reporter for MLB.com. Read his blog, Postcards from Elysian Fields, and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.