D-backs sign veteran pitcher Wolf to minor league deal

Starter Randy Wolf, released by Mariners in spring over contract dispute, signs with Diamondbacks.

Randy Wolf won a starting job with the Mariners in camp before requesting his release due to a contract dispute.

Rick Scuteri / USA TODAY Sports

The Diamondbacks added a potential rotation option Friday when they signed veteran left-hander Randy Wolf to a minor league contract.

The 37-year-old Wolf had won a starting spot in spring training with the Mariners, but when the team tried to renegotiate the terms of his contract, he requested and was granted his release. Wolf, who is 132-117 with a 4.20 ERA in his 14-year career, missed all of last season after undergoing Tommy John surgery. In 2012, he went 5-10 with a 5.56 ERA with the Mariners and Orioles, but over the previous three years, he'd gone 37-29 with ERAs of 3.23, 4.17 and 3.69 with the Dodgers and Brewers.

According to CBS Sports, Wolf will make a prorated portion of $1 million this season if added to the major league roster.

The D-backs' rotation has a major-league-worst ERA of 6.57 so far this season, with Wade Miley owning the starters' only two wins. Along with Wolf, long reliever Josh Collmenter also is considered an option for a starting spot if manager Kirk Gibson decides to make a change.