Yankees center fielder Jacoby Ellsbury is headed to the 15-day disabled list with a right knee sprain, according to MLB.com.
Ellsbury left Tuesday's loss to the Nationals in the fourth inning with the knee issue.
To fill the roster spot, the Yankees will call up outfielder Slade Heathcott from Triple-A.
In 36 games in Triple-A this season, Heathcott was hitting .280 with one homer and 17 RBI.