Arenado Exits with Shoulder Soreness; Dahl Making Strides

Rockies third baseman Nolan Arenado came out of Friday's game against the Dodgers after the fourth inning with right shoulder soreness. During an in-game talk-back with AT&T Sports Net, manager Bud Black said the move was precautionary.

Arenado is believed to have felt the pain in the top of the third inning when he was covering second base in a shift, and made the relay throw back to first baseman Ian Desmond on a 3-5-3 double play.

"He tweaked his shoulder," Black said. "We're taking him out for precautionary reasons. Keith [Dugger, the Rockies' head athletic trainer] thinks he's going to be OK, but just didn't want to take a chance. He was having some difficulty throwing up in the cage. You can't have that."

Ryan McMahon replaced Arenado. 

Dahl Stepping Up

David Dahl has received regular playing time since being recalled from Triple-A Albuquerque, He joined the team Sunday in Milwaukee -- although his luggage and equipment didn't make it all the way to Milwaukee -- and drew a walk as a pinch-hitter.

Friday night he was in the lineup for the fifth time in the five games on this homestand. Dahl was 9-for-15 in the first four games with two doubles, two home runs and four RBI. 

"I think David the last ocuple years learned a lot about himself," said Black. "There is a learning curve. It takes time to develop into a big-leaguer."

Bullpen Session

Left-handed reliever Mike Dunn threw a bullpen session Friday, his first since he went on the disabled list for the second time with a left rhomboid strain on July 7. He was moved to the 60-day disabled list on July 27, which means he cannot be activated until Sept. 7.

Dunn was on the disabled list with the same injury from June 10-June 27.

Given he is nearly four weeks from being able to be activated, Black said the Rockies want to create a throwing program. The likeliehood is he could go on a minor-league rehab assignment, but it wouldn't be until later this month because pitchers can be on a rehab assignment for only 20 days.