New mechanics fare well for Cahill in spring debut

Righty throws two effective innings; Dorn homers for D-backs in win

New mechanics fare well for Cahill in spring debut

SCOTTSDALE, Ariz. -- D-backs starter Trevor Cahill debuted his new mechanics for the first time in a game and pitched well, allowing two hits and one walk over two scoreless innings in a 4-3 win Thursday over the Rockies at Salt River Fields at Talking Stick.

Cahill, who struggled mightily last year and is competing for a spot in the rotation, has tweaked his mechanics to throw more over the top in hopes of improving his command.

"I could definitely tell there is some stuff," Cahill said when asked if there was a difference with his new delivery. "Just where I have to set my sights on pitches has to change a little bit, because the ball doesn't run as much."

Rockies starter Jhoulys Chacin, who was limited to just 11 starts last year due to a shoulder injury, retired the D-backs in order in the first inning before running into trouble in the second.

Mark Trumbo led off the second with a double, and one out later Cody Ross drove him home with a single to center. After Chacin was removed in favor of Jason Gurka, Ross wound up coming around to score on a single by Gerald Laird to give the D-backs a 2-0 lead.

Vidal Nuno, who is also competing for a spot in the D-backs rotation, did not fare as well as Cahill. The lefty allowed a pair of runs on five hits in two innings.

Arizona's No. 1 prospect Archie Bradley looked strong, striking out three and allowing just one hit in two scoreless innings.

"It's always good to get it started that way and I feel really good and comfortable out there," Bradley said. "So hopefully I can just keep that going."

Eddie Butler, one of the Rockies' top prospects, came on in relief and allowed a go-ahead two-run home run to Danny Dorn in the fourth. Butler completed two innings, allowing four hits.

D-backs Cuban free-agent sign Yasmany Tomas was 0-for-3 at the plate. In the field, he made four nice plays at third and mishandled one to his backhand side.

D-backs up next: The battle for spots in the rotation continues Friday when the D-backs play host to the A's. Left-hander Robbie Ray, who was acquired from the Tigers during the offseason, will start while two other rotation candidates -- Randall Delgado and Allen Webster -- are also slated to pitch in the game.

Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.