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8/2/2014 4:15 P.M. ET

Victorino possibly facing back surgery

BOSTON -- Red Sox right fielder Shane Victorino cringed when he saw the results of an MRI on his back, and will go see specialist Dr. Robert Watkins for a second opinion in Los Angeles in hopes of avoiding surgery.

At this point, however, surgery seems like a legitimate option -- if not a likely one -- and Victorino has probably played his last baseball game in 2014.

"I'm definitely disappointed, [it's] news that I didn't want to get," Victorino said. "Obviously, I think we need another opinion -- see where we're at and we're going to go from there."

Though Victorino wasn't pleased with the news, it probably explains why he has had continued setbacks all season.

"It wasn't the news that we wanted. Some of the things that were shown were a little bit more than what we had hoped for, at least I had hoped for," Victorino said. "But obviously being out there and not being able to go -- and having those things hamper me -- I knew something was wrong."

Victorino was placed on the disabled list for the third time this season on Friday. He has played in just 30 games in 2014, after being a key performer for the Red Sox in a World Series-winning season in '13.

"I don't mind playing through pain, I don't mind playing through an injury. But the continuation of it happening was the thing that was worrisome to me," Victorino said. "The other night when I felt it, it was something that kind of woke me up a little bit. It was kind of sharp and sudden when it happened and we obviously found out why, with what the MRI revealed."

The second opinion should make it clear to Victorino what his next course of action should be.

"To go get another opinion from Dr. Watkins and see what he has is important to me to get that view of things -- and we kind of have an idea of what's going to happen," Victorino said. "As I said, I hope it's not going to be as serious. That's what I'm hoping."

At the July 31 non-waiver Trade Deadline, the Red Sox acquired two outfielders -- Yoenis Cespedes and Allen Craig. With Victorino out, Cespedes will transition to right field (though he started in left on Saturday) and Craig will play left.

Ross heads to DL; Butler recalled

BOSTON -- Veteran backup catcher David Ross was placed on the 15-day disabled list on Saturday due to lingering plantar fasciitis in his right foot.

It was actually good news that there was a rupture on Friday, as the healing process can now start for Ross.

"Everything points toward that tendon having let go last night -- which, in this case, is a positive," said Red Sox manager John Farrell. "How many days it takes to recover, we'll see. But the 15 days should hopefully help this quiet down to the point of him returning."

With Ross out, Dan Butler was recalled from Triple-A Pawtucket for his first stint in the Majors. Butler was not in Saturday's starting lineup.

"You can't really describe it," said Butler. "I'm sure you guys have heard this every time everybody has come up. You can't explain how exciting this is."

Butler spent time with the Red Sox the last two Spring Trainings.

"He's always had a strong reputation of handling pitchers [with] his game-calling," said Farrell. "In some ways, it's a real success story when you factor in that he's been a non-drafted free agent signed out of the Cape Cod League, he was a backup catcher in college -- and with all of his work, it's paid off [with] a Major League opportunity."

Kelly getting settled in with Red Sox

BOSTON -- As Joe Kelly put on his Red Sox gear and made his way through the clubhouse on Saturday afternoon, everything was a new experience.

Two days after being traded from the Cardinals to the Red Sox, the right-hander admitted that things were still a bit hectic.

"It's something that happens in baseball. It can happen to anyone," Kelly said of the trade. "When I got the news, I was shocked and surprised. I found out it was Boston and knew I was going from one great baseball town to another.

"These guys traded for me and I am looking forward to this opportunity to help this team win. I want to go out and pitch my butt off every time I am on the mound and compete and win."

Ironically, Kelly will make his Red Sox debut against the Cardinals on Wednesday at Busch Stadium.

"It is going to be different. It will be weird," Kelly said. "I have to go out and pitch like I don't know those guys."

Kelly is now one of the most experienced pitchers in a Red Sox rotation that is full of young, raw talent.

Many Red Sox fans will remember Kelly as the Cardinals' Game 3 starter in the 2013 World Series. He tossed 5 1/3 innings, allowing two runs on two hits in a no-decision.

"My motivation is to beat the other team any time I pitch. You don't want any of those outside factors creeping in," Kelly said. "I learned that pitching against the Red Sox in the World Series. Media, fans, other people, I just tried to go out there and have fun."

Kelly has made just seven starts this season, after spending three months on the disabled list with a left hamstring strain. Since his return in July, the right-hander is 1-1 with a 7.32 ERA.

"I was on the DL for almost three months. It's been a month now. I have to keep competing. I like to win as much as I can. I like to sprint after balls. Though I am in the American League now, that's what I did in the National League," Kelly said. "I play the game at 100 percent. People don't think pitchers are very athletic, but that is my style. Any way I can help my team, I will do it."

Worth noting

• Craig was out of the Red Sox's starting lineup on Saturday against the Yankees after going 1-for-4 in his debut on Friday night.

"In that final at-bat last night, he turned his ankle a little bit when he hit the bag," Farrell said. "The plan was for [Daniel] Nava to be in the lineup today, regardless. This will give a day or so for him to address some of that."

• While recently acquired utility man Kelly Johnson remains on the 15-day disabled list, the Red Sox expect him to play in rehab games on Tuesday and Wednesday. He's eligible to join the team on Thursday in St. Louis.

"I didn't even consider the possibility I would be going anywhere," Johnson said. "When you're on the DL, you're a little bit under the radar. But, at the same time, it always happens when you least expect it. It's the second time I've been traded, and I did not expect it either time. So that's how it goes."

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