Adrian Beltre to undergo MRI on quad

BOSTON -- Texas Rangers third baseman Adrian Beltre has flown back to Dallas and will meet Wednesday with team doctor Keith Meister to receive an MRI on his injured left quad, general manager Jon Daniels said.

Beltre, who served as the Rangers' designated hitter Tuesday night, was lifted for a pinch hitter in the sixth inning of Texas' 10-7 victory against the Boston Red Sox. After an RBI double in the fourth inning, Beltre was unable to run, struggling to get back to the Rangers' dugout at the end of the frame.

"Anytime one of your best players is unavailable, it's concerning," Daniels said. "I think there's a little bit of unknown with this from the standpoint that he's dealt with hamstrings before.

"This spring is the first time he's dealt with the quad. Hopefully we'll get good news and it won't be a long-term deal."

Daniels expects to provide a definitive update on Beltre during Thursday's off day.

In the meantime, the Rangers purchased the contract of infielder Kevin Kouzmanoff from Triple-A Round Rock on Wednesday afternoon, designating reliever Seth Rosin for assignment.

Although Rangers manager Ron Washington elected to start Josh Wilson at third base Wednesday against Boston, Kouzmanoff is available for the game.

"We don't know what case we're preparing for, we just know we needed an extra infielder here with Beltre being gone," Washington said. "Until Dr. Meister looks at Beltre and gives us some definitive info on him, we've just got to wish for the best."