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“It’s not clear yet how much time he’ll miss. It will be a minimum of four weeks. Somewhere in the four to eight (range), depending on how he responds and how treatment goes,” Friedman said.

“He’s always been a pretty good healer. He’s had some hamstring issues in the past and has come back from them pretty quickly, relatively speaking, so we’re not going to put a firm timeline on it.”

Longoria was sidelined by a strained left oblique muscle most of the opening month a year ago. He had a strong second half, finishing with 31 homers and 99 RBIs.

He helped the Rays to a 15-8 record in April _ the second-best opening month in franchise history _ and thought he had left his problems with injuries behind him.

“It’s just one of those things. Driving home last night, I was thinking I can look in the mirror and say I’ve done everything that I can do to try to prevent these kind of things,” Longoria said. “My hamstring just doesn’t cooperate with me sometimes.”