Manager Eric Wedge said the eight-year veteran is eager to get a return shot at the Majors after sitting out the past two seasons while having surgeries on his shoulder and elbow. Bonderman signed a Minor League deal with the Mariners last winter and competed for a rotation spot in the spring, but wasn't quite ready and spent the first two months at Tacoma.
"He's under control, but you can tell he's excited to be here," Wedge said. "For a 30-year-old, he's been through so much. He's worked so hard to get back here, that's been evident here for the last year. So, good for him. He deserves the opportunity."
Bonderman went 2-4 with a 4.52 ERA in 11 starts in Tacoma, pitching better as he went along in his first regular-season action since his last start with the Tigers on Oct. 1, 2010, at Baltimore.
"It's been good for him to be down there and pitch every fifth day," Wedge said. "He's been pretty consistent down there. His arm's been good, his stuff's been good. It's just a matter of how it translates up here, really."
Greg Johns is a reporter for MLB.com. Follow him on Twitter @GregJohnsMLB as well as his Mariners Musings blog. This story was not subject to the approval of Major League Baseball or its clubs.