Baltimore recalled Bergesen from Triple-A Norfolk on July 17, but he never appeared in a game for the team this season. The Orioles drafted him in the fourth round of the 2004 First-Year Player Draft.
"It was at the point where it was perfect timing to get a fresh start," Bergesen said. "I'm really looking forward to it. Baltimore was the only other organization I had been with, so there definitely is a bit of nervousness, but it's a good nervousness. I'm just trying to meet everyone and learn the ways here."
In parts of three seasons with the Orioles, from 2009-11, Bergesen went 17-24 with a 4.68 ERA in 83 games. Although 59 of his career appearances have been starts, the D-backs need the 26-year-old in the bullpen after their previous long relief man, Josh Collmenter, moved back to the rotation.
"That's the plan, he'll be our long guy," D-backs manager Kirk Gibson said. "He's flexible like that though."
In 24 career relief outings, Bergesen owns a 5.36 ERA. He mostly works as a ground-ball pitcher, which figures to work to his advantage in the fly-ball friendly confines of Chase Field.
"I'm a contact guy, that's kind of my game," Bergesen said. "I'm looking forward to getting going."
Now on a team that has played in the postseason as recently as last season, Bergesen is anxious to contribute in whatever way he can.
"I watched these guys last year and know what this team is about, I want to be a part of it," Bergesen said. "Whatever the ball club needs from me, I'm happy with the opportunity."