Bronson Arroyo has decided to undergo Tommy John surgery.
Bronson Arroyo (elbow) played catch without difficulty on Friday.
Diamondbacks manager Kirk Gibson said Saturday that Bronson Arroyo (elbow) is close to resuming activity.
Bronson Arroyo has been diagnosed with a sprained ulnar collateral ligament in his right elbow.
The Diamondbacks are awaiting the results of an MRI performed on Bronson Arroyo's right elbow.
Diamondbacks placed RHP Bronson Arroyo on the 15-day disabled list with right elbow tendinitis.
Bronson Arroyo allowed one run on five hits over five innings in a win over the Dodgers on Sunday.
Bronson Arroyo is expected to be placed on the disabled list after leaving Sunday's start with soreness in his elbow.
Bronson Arroyo twirled seven frames of one-run ball in Tuesday's 4-1 victory over the Astros.
Bronson Arroyo got the win, allowing four runs over 6 1/3 innings as the D'Backs defeated the Rockies 12-7 on Thursday.
Bronson Arroyo was given a cortisone shot in his right elbow after Friday's start against the Reds.
Facing his former team for the first time, Bronson Arroyo gave up five runs in seven innings to take a loss to the Reds on Friday.
Bronson Arroyo spun six innings of one-run ball but took a no-decision in Sunday's win over the Mets.
Bronson Arroyo allowed five runs on nine hits over seven innings in a loss to the Cardinals on Tuesday.