Rox lefty De La Rosa not going to rush groin injury

Rox lefty De La Rosa not going to rush groin injury

SCOTTSDALE, Ariz. -- Rockies left-handed pitcher Jorge De La Rosa, dealing with left groin tightness throughout the spring, graduated from playing catch to throwing long-toss Friday, with hopes of throwing a bullpen session next week.

De La Rosa left his only Cactus League start, on March 20, because of the groin issue, which had limited him to one "B" game prior. The gradual pace of healing and building his arm strength eliminates him from starting the April 10 home opener against the Cubs. De La Rosa said he will need to pitch in two to three games, most likely a combination of extended Spring Training and Minor League rehab games, to build his pitch count for the Majors.

"I'm really frustrated, but what I can do is just stay calm," De La Rosa said. "I tried to rush it, and you saw what happened last time."

Thomas Harding is a reporter for MLB.com. Read his blog, Hardball in the Rockies, follow him on Twitter @harding_at_mlb, and like his Facebook page, Thomas Harding and Friends at www.Rockies.com. This story was not subject to the approval of Major League Baseball or its clubs.