Josh Collmenter gave up five runs in four innings Saturday in a no-decision against the Rockies on Saturday. Collmenter can't have much more rope after following up his awful spring with a 12.86 ERA in his next two starts. Don't be surprised if Wade Miley gets his rotation spot next time through.

Josh Collmenter's spring struggles carried over to the regular season Sunday, as he allowed six runs (five earned) on five hits in just three innings of Arizona's 7-6 win over the Giants. Start the Trevor Bauer watch. Collmenter allowed three runs a piece in the second and third, and just wasn't sharp after getting rocked to the tune of a 9.95 ERA in Cactus League play. He's off-the-radar in NL-only leagues, and could soon be out of the rotation.

Josh Collmenter got shelled yet again on Friday, allowing right runs on 10 hits and two home runs in just four innings of Arizona's loss to the Angels. Collmenter served up bombs to Albert Pujols and Howie Kendrick in watching his spring ERA soar to a likely final resting place of 11.81. Collmenter is penciled into Arizona's season-opening rotation, but he'll have to turn things around in a hurry to stave off youngsters Trevor Bauer and Tyler Skaggs.

Kirk Gibson announced Arizona's starting rotation on Monday. Ian Kennedy will be followed, in order, by Daniel Hudson, Josh Collmenter, Trevor Cahill and Joe Saunders. Arizona is apparently playing the matchups early with Cahill, which doesn't seem like an endorsement from his new team. The 26-year-old Collmenter, meanwhile, will need to perform early to hold off Trevor Bauer and Tyler Skaggs. The right-hander is winless in three starts this spring, and owns a 9.75 ERA over 12 innings.

Josh Collmenter allowed two runs on five hits over five innings in Sunday's game against the Padres. Collmenter will open the season as the Diamondbacks' fifth starter, but Trevor Bauer and Tyler Skaggs are candidates to replace him if he gets off to a slow start. The 26-year-old right-hander is winless in three starts this spring, and owns a 9.75 ERA over 12 innings.

Diamondbacks' manager Kirk Gibson reiterated Wednesday that Josh Collmenter will open the season as the team's fifth starter if he's healthy. Collmenter has allowed 11 runs on 12 hits over seven innings (14.14 ERA) this spring, but Gibson suspects that he may have lost his fastball command while focusing on his secondary pitches. The 26-year-old right-hander was scratched from a scheduled start two weeks ago due to forearm tightness, but he hasn't given any indication that it's a lingering issue. The D-Backs appear willing to give him the benefit of the doubt, but top prospects Trevor Bauer and Tyler Skaggs are candidates to replace him if he gets off to a slow start.

Josh Collmenter got roughed up for five runs on six hits in just three innings of Monday's loss to the A's. Collmenter served up home runs to Manny Ramirez and Josh Reddick in seeing his Cactus League ERA skyrocket to 14.14. It's never wise to make too much of spring results, but allowing 11 runs in just seven innings of work can't be good. Diamondbacks manager Kirk Gibson recently confirmed Collmenter will begin the year in the starting rotation, but he'll likely be on a short leash.

Jim Bowden of MLB Network Radio reports that the Diamondbacks are discussing the possibility of moving Josh Collmenter to the bullpen once one of their young starters is ready. Collmenter posted a 3.59 ERA in 24 starts for the D'Backs last season, but he started to get hit harder once opposing hitters got used to his delivery, and his long-term role is probably as a reliever. Trevor Bauer in particular has really impressed the team not only with his stuff but with his work ethic, and he's nearly big league-ready. Tyler Skaggs isn't far off, either. Collmenter isn't a recommended option in mixed leagues this season.

Josh Collmenter (forearm) has been cleared to make his Cactus League start Wednesday vs. the Rockies. Collmenter had to be scratched from a scheduled outing late last week because of forearm tightness. The 26-year-old right-hander has surrendered three hits and three earned runs in two innings of Cactus League play.

Josh Collmenter (forearm) is scheduled to throw a bullpen session Sunday. If the session goes well, Collmenter will make his second Cactus League start on Wednesday. The right-hander skipped his previous start due to forearm tightness, but the Diamondbacks are convinced it's not a big deal. Collmented posted a 3.59 ERA in 24 starts last season and will hold down a rotation spot again in 2012.