WASHINGTON -- New York Yankees center fielder Jacoby Ellsbury will go on the 15-day disabled list with a sprained right knee after he was injured in the fourth inning of Tuesday night's 8-6, 10-inning loss to the Nationals.
Yankees manager Joe Girardi said Ellsbury hurt himself swinging in the fourth inning, when he left the game.
Girardi said Ellsbury went for an MRI, but the manager did not know the specific severity of the injury.
"Is it going to cost him some time?" Maybe," Giardi said. "Is it real serious? I don't think so, but we really won't know until the MRI."
Slade Heathcott will get called up from Triple-A.
"I haven't really thought about it," Girardi said. "You've got to see what it is. It's possible that we might do that. I think you kind of wait to see what it is before you make a whole lot of changes."
But after Ellsbury moved to second on a groundout, Girardi and assistant trainer Mark Littlefield checked in on Ellsbury.
Ellsbury stayed in the game and scored a run. However, he did not return to the field for the bottom half of the fourth.
Ellsbury was replaced by Carlos Beltran, and Young moved from right to center.
The Yankees will likely call up Ramon Flores from Triple-A to be the team's fourth outfielder.
Ellsbury entered the game hitting .327 with a homer, six RBIs and 14 stolen bases.
After signing a seven-year, $153 million contract, Ellsbury hit .271 with a .747 OPS in his first year with the Yankees in 2014.