Rockies De La Rosa undergoes Tommy John surgery

Colorado pitcher Jorge De La Rosa underwent Tommy John surgery

in Los Angeles on Friday, officially ending the left-hander’s


De La Rosa was placed on the DL May 25, one day after leaving in

the third inning of a 5-2 loss to Arizona with elbow soreness. De

La Rosa was later taken to a hospital an had an MRI which revealed

a complete tear of the ulnar collateral ligament in his left


De La Rosa was the Rockies’ top pitcher this season with a 5-2

record and a 3.51 ERA. He was coming off his first career complete

game when he got hurt.

Colorado got some encouraging news on two of its other


Right-hander Aaron Cook, out since March 31 with a fractured

right index finger, is penciled in to start for the Rockies against

San Diego on Wednesday. Another righty, Esmil Rogers, threw 67

pitches in extended spring training and the team is discussing

where to send him next in his recovery from a strained lat muscle

in his right shoulder.