The second baseman did turn a sensational double play to end the fifth inning on a ground ball that was crushed by Prince Fielder, but he otherwise had a rough go in the Cardinals' 4-2 loss to the Brewers that evened the National League Championship Series at 2.
Theriot had a tough night defensively -- he made a crucial error that allowed an insurance run to score in the sixth -- and offensively, as he went 0-for-4 and was unable to cash in Matt Holliday from third base with one out in the bottom of the sixth.
The error came on a chopper hit by George Kottaras with Rickie Weeks at third base and Jerry Hairston at second.
Theriot charged to field the ball on a hop, but the ball went off his chest, allowing Weeks to score and Kottaras to reach first safely. Theriot didn't want to make excuses for the play after the game, refusing to blame it on a bad bounce.
"You've got to make a decision," Theriot said. "He's going on contact, so you have to charge it and go get it. It's a do-or-die play. If I wait back and play it on the hop, he's going to be safe at home. So when you see a hit like that on a chopper, you try to take off after it as hard as you can and hope for the best."
Left-hander Arthur Rhodes, who induced Kottaras' grounder, said that from his vantage point, it did look like the ball took a funny bounce.
"It was a bad break," Rhodes said. "It probably took a bad hop on him. You can't do anything about that."
Theriot had the chance to redeem himself in the bottom of the frame, when he came up with Holliday at third base and one out. But Theriot struck out on a 1-2 fastball from Randy Wolf, and Holliday was eventually stranded after Jon Jay flied out to center field to end the inning.
"You have to get those guys in when you have the chance to do it," Theriot said. "I wasn't able to do it tonight."