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7/7/2013 8:33 P.M. ET

Victorino again sidelined with hamstring injury

ANAHEIM -- Right fielder Shane Victorino continues to be bogged down by nagging injuries. The most recent is a left hamstring ailment, the same thing that landed him on the disabled list last month.

The Red Sox are hoping that won't be the case this time. Victorino left Saturday's game with the injury and was not in Sunday's lineup.

"He felt better when he came in today, particularly after the treatment he received here today," said manager John Farrell, "but he's day to day right now."

Victorino has experienced both back and leg maladies for a lot of the season. Much of it has to do with Victorino's aggressive style of play, which has helped the Red Sox a great deal this season.

"He doesn't play the game half-heartedly," Farrell said. "Everything he does is full-bore. Right now, he's going through it and trying to manage it as best he can with all the stretching and the treatment he does receive. We'd certainly like him to be on the field every single day. We saw last night again what he's capable of. He's missed when he's not on the field."

With Victorino out, Daniel Nava started in right field and batted second. Mike Carp got the start in left.

Miller returns to Boston for further examination

ANAHEIM -- Andrew Miller had a walking boot on his left foot on Sunday, but still no official diagnosis.

Preliminary X-rays taken Saturday at a hospital in Anaheim did not show a break in Miller's foot, but that doesn't mean there isn't one.

Miller flew back to Boston on Sunday night and will be examined extensively on Monday by the team's renowned foot specialist, Dr. George Theodore.

Miller was placed on the 15-day disabled list, and judging by the way he was moving, the southpaw will probably be sidelined longer than 15 days.

"We just don't know a whole lot right now," said Miller. "It's pretty sore. I can't really put any weight on it or anything. Going to fly back to Boston, find out more, and hopefully get taken care of sooner than later."

Miller can only hope for the best.

"All I've had is X-rays so far. I'm sure there will be some other images that are probably a little more definitive," said Miller. "I'm no doctor, but the bones look OK, which is good. There's some sort of sprain or strain in there. Hopefully it's minimal and doesn't take too long to heal up."

In his second full season as a reliever, Miller has been dominant at times, posting a 2.64 ERA while striking out 48 batters in 30 2/3 innings.

"As well as he's pitched, a power left-hander in the bullpen, there's not too many of those types available to us," said manager John Farrell. "It's a loss. But as we've addressed every other challenge and change, we'll find a way to meet the challenge. Our expectation overall doesn't change, and that's to win tonight."

To replace Miller on the roster, the Red Sox recalled right-hander Alfredo Aceves from Triple-A Pawtucket.

It appeared to be a freak injury, one Miller suffered as he performed the simple act of trying to back up home plate on a single.

"It was when I tried to change momentum to go back up home," Miller said. "I watched the ball go by me, and when I went to push off to back up home plate, that's when I felt it."

Aceves back, this time for relief

ANAHEIM -- The last three times the Red Sox recalled Alfredo Aceves from the Minor Leagues, it was for a one-day spot start. But Sunday's occasion was different.

This time, Aceves has returned to provide depth to a bullpen that has lost Andrew Miller for at least 15 days. The Sox were also short for Sunday's game, as closer Koji Uehara and setup man Craig Breslow were both unavailable.

"I came here to help the team as a pitcher, and that's all I can do as a player," Aceves said.

Aceves has pitched in every type of relief in his career, so his services should come in handy for this final week leading into the All-Star break.

"You know, just in talking with him just now, he knows he's going to be in the bullpen for the remainder of this trip," said manager John Farrell. "He's going to be middle; he's going to be late in the game. We all know he's durable. He's resilient. We'll see how that role evolves, but it will be in that middle to late part of the game."

As for Sunday's game, Farrell said that Andrew Bailey and Junichi Tazawa were the most likely options as closer.

Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. This story was not subject to the approval of Major League Baseball or its clubs.