Girardi told the Associated Press on Sunday that Teixeira was scheduled for an MRI and was likely to miss time, including Sunday's final game in a four-game series between the Yankees and Orioles.
"I don't think he'll be a player for us," Girardi told the AP. "I'd be surprised, but we'll just have to wait and see. He's sore — he doesn't feel like it's back to square one, but it's sore."
Teixeira returned Saturday after a 10-day absence because of the injury to his calf. Teixeira went 1-for-4 on Saturday night in his return.
After returning to the Yankees lineup for one game on Saturday, New York Yankees first baseman Mark Teixeira aggravated his injured calf and is out again.
According to New York Yankees manager Joe Girardi, Teixeira is going to have an MRI done on his calf Sunday and the team will then determine how long he will be out.
In his first game since August 27, Teixeira went 1-for-4 with a walk and a double in the team's 5-4 loss to the Baltimore Orioles on Saturday. He played the entire game before the injury began to flare up after the game.
On the season, he his hitting .255 with 23 HR and 81 RBI in 120 games this season. Given the Yankees troubles as of late, they need all of the help they can get.
Yankees first baseman Mark Teixeira could miss two weeks after suffering a strained left calf in Monday's loss to the Blue Jays. "It could be as little as a week, it could be two weeks,"Teixeira told reporters. "I don't really know. It's veryfrustrating."
Teixeira injured himself after hitting a foul ball in the fourth inning. He initially stayed in the game after being visited by a team trainer, eventually reaching base on a walk. He advanced to second following a single by Eric Chavez and scored on a single by Russell Martin, but he was noticeably limping by the time he crossed home plate.
After retreating to the clubhouse, he was removed from the game and sent for an MRI, which confirmed a Grade 1 strain. "I thought I could kind of run through it," Teixeira said, according to the New York Times. "But instead of loosening up as I was running it kind of tightened up on me."
Teixeira is hitting .255/.335/.478 with 23 home runs and 81 RBI in 435 at-bats this season. It's possible that his absence could be filled by Steve Pearce, acquired from Houston in a trade earlier Monday. In 134 at-bats split between the Astros and Orioles this season, Pearce is hitting .254/.333/.396 with three home runs and 22 RBI.