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Chatwood keeps arm fresh as leg recovers

MIAMI -- Rockies right-hander Tyler Chatwood, officially placed on the 15-day disabled list Wednesday (retroactive to March 29) with a left hamstring strain, threw 113 pitches on Wednesday at Marlins Park.

The goal is to keep Chatwood's arm in shape while his hamstring, which was not badly damaged, finishes healing. Forty of his pitches were warm-ups, with the rest taken with hitters standing in the box. Chatwood also did agility exercises on grass with no discomfort, and he will continue to work his way to running on dirt. Fear of his sustaining an injury fielding or running the bases, which is how the injury occurred in a Spring Training game, led the Rockies to place him on the DL and call up Jordan Lyles to pitch against the Marlins on Wednesday night.

Rockies head athletic trainer Keith Dugger said Chatwood would have to go through a Minor League rehab assignment, which may be as little as one start. Dugger said the Rockies would find the place with the best weather.

"He's kept his arm going, so that's a plus," Dugger said.

Dugger also said that lefty Boone Logan, completing his return from left elbow cleanup surgery (bone chips and bone spur), was scheduled to throw rehab games for Triple-A Colorado Springs on Thursday and Friday before joining the team at Coors Field. Dugger said Logan had no pain but needed work on consecutive days. The coaches would determine whether to activate him Saturday, which is when he is eligible to return.

Right-hander Jhoulys Chacin, who sustained a right shoulder strain at the start of Spring Training, will throw a 25-pitch live batting practice Thursday in Scottsdale, Ariz. Dugger said Chacin was on pace to be able to pitch in the Majors as early as April 28 if necessary, but he was more likely to pitch in a rehab game that day and be a candidate to be activated for his next turn.

Thomas Harding is a reporter for Follow him on Twitter @harding_at_mlb.
Read More: Colorado Rockies, Jhoulys Chacin, Tyler Chatwood, Boone Logan