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03/30/12 3:42 PM ET

Lowrie day to day after MRI reveals no damage

KISSIMMEE, Fla. -- Astros shortstop Jed Lowrie was relieved to learn Friday the MRI performed on his sprained right thumb showed no ligament damage. Lowrie said he's day to day and hopes to be ready for Opening Day in a week.

Lowrie sprained the thumb diving into second base on a pickoff attempt Wednesday and was taken for X-rays, which were negative.

"I got about the best news I could have as far as the MRI is concerned," Lowrie said. "There is no ligament damage, and that's obviously great news. It's just a day-to-day thing until I can go."

Lowrie said the thumb was already feeling better.

"The inflammation has gone down," he said. "It's still pretty sore, but the fact the inflammation has gone down is a good indication it's going in the right direction. I don't think I have any restrictions at this point. It's just do whatever I can, so I'll take it step by step."

Lowrie, acquired from the Red Sox along with Kyle Weiland in a December trade, is having a terrific spring. He was hitting .333 with two homers and seven RBIs in 36 at-bats and had a .429 on-base percentage. Lowrie said he's still not able to grip a bat, however.

"I haven't even tried yet, but I don't think it's at that point yet," he said. "It's still too sore to the touch. I don't think there's any reason to push it when it's still sore. We'll get all that taken care of and go from there."

Brian McTaggart is reporter for MLB.com and writes an MLBlog, Tag's Lines. Follow @brianmctaggart on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.