The Twins lost another game they should have won Tuesday night.

Now they must hope they didn't lose their starting third baseman in the process.

A scary moment came in the top of the 10th inning of Minnesota's 5-4 loss to the Atlanta Braves, when Trevor Plouffe was injured trying to break up a double play. Second baseman Dan Uggla's right knee hit the right side of Plouffe's head, sending his batting helmet flying.

Plouffe immediately grabbed the top of his head, then spent several minutes writhing face down in the dirt behind second base at Turner Field. Assistant athletic trainer Tony Leo and third-base coach Joe Vavra tended to Plouffe, who eventually was able to walk off the field.

"He got hit pretty hard," Twins manager Ron Gardenhire said. "They're doing the testing on him right now. He took a knee right to the head. We'll know more later."

Initial television reports had Plouffe leaving the dugout with his eyes shielded as he made the walk back to the Twins' clubhouse. For an organization that has been plagued by high-profile head injuries in recent years, it was another sobering reminder.

Eduardo Escobar took over at third base for Plouffe, who entered the game ranked second on the team in home runs (four) and slugging percentage (.431).

Plouffe's eighth-inning single tied the score at 3 and keyed the Twins' first multiple-run inning since Saturday. Over their previous 29 innings, the Twins had managed a total of four runs.