Red Sox transferred RHP Scott Atchison from the 15-day disabled list to the 60-day disabled list.

The move clears a spot for the newly-acquired Pedro Beato the 40-man roster. Atchison was recently diagnosed with a torn ulnar collateral ligament in his right elbow and is attempting to rehab the injury rather than undergo Tommy John surgery.

Scott Atchison will try to rehab the torn ulnar collateral ligament in his right elbow.

The assumption was that Atchison would undergo Tommy John surgery, but Dr. James Andrews believes the injury was pre-existing and that he could pitch through it. There's no timeline for his return and it's possible he may end up needing surgery if his rehab effort fails.

Scott Atchison (forearm) had a setback in his latest rehab appearance with Triple-A Pawtucket.

The severity of the injury isn't yet known, but any setback is a concern. Atchison is scheduled to undergo an MRI on Saturday to determine whether or not he's dealing with structural damage.

Red Sox placed RHP Scott Atchison on the 15-day disabled list, retroactive to July 14, with right forearm tightness.

It's not considered serious, but the Sox have decided to play it safe with the veteran swingman. Atchison should be ready to return at the end of the month.

Red Sox sent RHP Scott Atchison outright to Triple-A Pawtucket.

Atchison passed through waivers with ease after being designated for assignment late-last month. He'll come to spring training as a non-roster player. The 35-year-old right-hander posted a 3.26 ERA and 17/6 K/BB ratio over 30 1/3 innings with the Red Sox last year.

Red Sox designated RHP Scott Atchison for assignment.

He was cleared in order to make room for Cody Ross on the team's 40-man roster. Atchison, who turns 36 in March, posted a 3.26 ERA and 17/6 K/BB ratio over 30 1/3 innings last season. There's a chance he'll slip through waivers unclaimed.

Red Sox declined RHP Scott Atchison's club option for 2012.

Atchinson would have earned $40,000 over the major league minimum. He's still on the club's 40-man roster, however, because he's arbitration eligible. Expect Boston to non-tender him. The 35-year-old right-hander is out of options. He went 1-0 with a 3.26 ERA over 30 1/3 innings in 2011.

Scott Atchison (groin) has felt very little improvement.

Atchison was pulled in the eighth inning Sunday after tweaking a groin muscle. `I'm hoping I can pitch again," he told reporters Monday. For now, he's day-to-day.

Scott Atchison has been diagnosed with a strained groin.

Red Sox manager Terry Francona called it a "mild groin tweak." Atchison left Sunday's game before the eighth inning shaking his right arm after a warmup pitch. He should be considered day-to-day.

Scott Atchison left Sunday's game before the eight innings due to an apparent arm injury.

Atchison threw 1 1/3 scoreless innings and was coming out to start another frames, but he began shaking his right arm after a warmup pitch and then left the field with a trainer. We'll update his status when more is known.

Scott Atchison was called up from the minors on Friday September 9.

The Red Sox are expected to promote Scott Atchison prior to Friday's game.

It will be Atchison's sixth stint with the Sox this season, as he holds a 4.42 ERA and 1.36 WHIP over 10 games. He's been terrific for Triple-A Pawtucket, posting a 2.64 ERA and 72/9 K/BB ratio over 61 1/3 innings.

Red Sox optioned RHP Scott Atchison to Triple-A Pawtucket.

Atchison's most recent stint with the Sox lasted just one day, as he gave up a run over three relief innings in Friday's blowout loss to the A's. He'll probably be back in September.

Red Sox recalled RHP Scott Atchison from Triple-A Pawtucket.

With a doubleheader against the A's looming, the Red Sox needed an extra bullpen arm. Atchison has posted a 4.70 ERA and 1.43 WHIP over nine games with the Sox this season.

Red Sox recalled RHP Scott Atchison from Triple-A Pawtucket.

Atchison will return to a middle relief role. He has a 4.73 ERA in 13-plus major league innings this season.

Red Sox optioned RHP Scott Atchison to Triple-A Pawtucket.

Atchison has made several trips to and from the minors and majors this year, and is likely to make a few more before the 2011 season is through. He has a 4.73 ERA and 1.43 WHIP in 13 1/3 big league innings.

Red Sox recalled RHP Scott Atchison from Triple-A Pawtucket.

He's taking Michael Bowden's place in Boston's bullpen. In 13 1/3 innings over seven appearances earlier this season, Atchison posted a 4.73 ERA, 1.43 WHIP and 9/2 K/BB ratio. His use figures to be limited.

Red Sox recalled RHP Scott Atchison from Triple-A Pawtucket.

Atchison was designated for assignment earlier this month, but was added back to the 40-man roster after clearing waivers. He allowed three runs on seven hits over 3 2/3 innings in his lone appearance with the big club back on May 5. Look for him to pitch in middle relief.

Red Sox recalled RHP Scott Atchison from Triple-A Pawtucket.

He'll fill one of the roster spots left by Bobby Jenks and Dan Wheeler, who are being placed on the disabled list. Atchison was off to a fantastic start with the PawSox this season, posting a 1.04 ERA and 17/1 K/BB ratio over 17 1/3 innings. He had a 4.50 ERA and 41/19 K/BB ratio over 60 inning with the Red Sox last season.

Red Sox exercised RHP Scott Atchison's option for 2011.

He'll receive $40,000 in addition to the major league minimum salary next season. Atchison, who turns 35 next March, posted a 4.50 ERA and 41/19 K/BB ratio over 60 innings with the Red Sox this past season.