Mark Teixeira is done for the season:

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.

A big question the Yankees faced this season was health. Alex Rodriguez and Teixeira proved healthy through most of the season, although CC Sabathia did not. The two offensive players having good seasons was enough to put the Yankees in a good position to make the playoffs.

This gives 22-year-old rookie Greg Bird a chance to show what he can do. So far he’s hit for power and got on base okay, so the Yankees may not be losing that much.

The Yankees are off to a poor start Friday night as Luis Severino gives up two two-run homers as the Blue Jays score five runs in the top of the first, and are still batting.