NEW YORK (AP) Mark Teixeira will miss the rest of the season after tests revealed the New York Yankees first baseman has a fractured right leg.

Teixeira fouled a ball off his shin Aug. 17 and has started only once since. He had trouble running in that game and was not improving much, so the Yankees sent him for a third round of tests Friday that finally showed a fracture.

Though not entirely unexpected, it's certainly a blow to the Yankees at an important time in their push for the playoffs. New York was 1 1/2 games behind first-place Toronto in the AL East going into their four-game series Friday night. The Yankees have a comfortable lead in the wild card race.

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Rookie first baseman Greg Bird will keep filling in for Teixeira. Bird was batting .241 with five home runs and 17 RBIs in 83 at-bats.