Bronson Arroyo SP ARI 2 Months

Bronson Arroyo underwent successful Tommy John surgery on Tuesday.

The operation was performed by Drs. Michael Lee and Don Sheridan. Arroyo, who is in the first year of a two-year, $19 million contract, will be sidelined until the second half of the 2015 campaign.

Bronson Arroyo SP ARI 2 Months

Bronson Arroyo has decided to undergo Tommy John surgery.

Arroyo didn't have any issues after he played catch last Friday following a few weeks of down time. However, the veteran right-hander has ultimately decided that it's best to go ahead and have his sprained ulnar collateral ligament operated on. He'll be sidelined until around midseason next year.

Bronson Arroyo SP ARI 2 Months

Bronson Arroyo (elbow) played catch without difficulty on Friday.

It's the first step in the recovery process for the veteran right-hander who is attempting to pitch through a sprained ulnar collateral ligament in his elbow rather than opting for Tommy John surgery. While he felt good Friday, it's still a longshot that he returns to be a contributor in mixed leagues at any point this season.

Bronson Arroyo SP ARI 3 Months

Diamondbacks manager Kirk Gibson said Saturday that Bronson Arroyo (elbow) is close to resuming activity.

Arroyo couldn't straighten his arm out fully in the middle of last week, but he's evidently made progress over the last few days. "The thought is he's getting closer," Gibson said. "It's getting to time where he's gonna think about doing some stuff." Arroyo will try to pitch through a sprained ulnar collateral ligament, but Tommy John surgery remains a distinct possibility.

Bronson Arroyo SP ARI 3 Months

Bronson Arroyo has been diagnosed with a sprained ulnar collateral ligament in his right elbow.

Arroyo will be shut down for 10 days to see how the elbow responds. Obviously the hope is that rest and rehab work, but Tommy John surgery is always a possibility when the UCL is involved. Arroyo pitched through elbow pain for a few weeks before finally landing on the disabled list for the first time in his career on Monday.

Bronson Arroyo SP ARI 3 Months

The Diamondbacks are waiting on the results of an MRI performed on Bronson Arroyo's right elbow.

The D'Backs think Arroyo is just dealing with tendinitis, but they sent him for the MRI just to be safe. The hope is that Arroyo, who has dealt with the elbow issue for a few weeks, will be fine after a couple weeks of rest. "I think the last three times he's went out there, he's been at about 50 percent," general manager Kevin Towers said. "It's pretty amazing that he's posted the type of numbers [he has]."

Bronson Arroyo SP ARI 3 Months

Diamondbacks placed RHP Bronson Arroyo on the 15-day disabled list with right elbow tendinitis.

It's the first time during his 15-year career that the veteran right-hander has landed on the DL. Arroyo's elbow ailment first cropped up late last month, and it came to a head when he had to depart Sunday's outing. It's not clear at this point how long he'll be sidelined. The D'Backs haven't named a rotation replacement yet, but Randall Delgado is an option.

Bronson Arroyo SP ARI 3 Months

Bronson Arroyo allowed one run on five hits over five innings in a win over the Dodgers on Sunday.

It was a typical Arroyo start -- some hits allowed, but just one walk and one strikeout, and most importantly, just one run given up. The right-hander has now won three straight to run his record to 7-4. Arroyo will take a 4.08 ERA and 1.29 WHIP into his start against the Giants on Friday.

Bronson Arroyo SP ARI 3 Months

Bronson Arroyo is expected to be placed on the disabled list after leaving Sunday's start with soreness in his elbow.

Arroyo allowed just one run on five hits over his five innings of work on Sunday, picking up his seventh victory of the season. It's unclear where the Diamondbacks would turn to fill Arroyo's spot in the rotation, but Randall Delgado would be one possibility.

Bronson Arroyo SP ARI 3 Months

Bronson Arroyo twirled seven frames of one-run ball in Tuesday's 4-1 victory over the Astros.

Arroyo allowed six hits -- five of them singles -- while walking two and striking out five. The veteran right-hander had allowed at least four runs in three of his last four starts, so this was a nice bounce-back outing. Arroyo has a tough matchup this weekend on the road against the Dodgers.