And now, all of the Orioles' arbitration-eligible players are under contract for 2013.
In the case of Darren O'Day, he's also locked up through 2014.
O'Day's agency, the Beverly Hills Sports Council, tweeted confirmation this afternoon that the reliever agreed to a two-year deal with an $4.25 million option for 2015. He is guaranteed $5.8 million.
The deal becomes official once O'Day passes his physical.
O'Day, 30, made $1.35 million last season while winning a career-high seven games in eight decisions and posting a 2.28 ERA in 69 relief appearances. He allowed 49 hits, walked 14 and struck out 69 in 67 innings.
The sidearming right-hander had requested $3.2 million in arbitration, while the Orioles offered $1.8 million.
The Orioles claimed O'Day off waivers in November shortly before Dan Duquette was hired as executive vice president.
Duquette confirmed today during "Hot Stove Baseball" on WBAL Radio that his last three arbitration-eligible players, including closer Jim Johnson and starter Jason Hammel, had reached agreement on contracts last night, and the club was "exploring" a multi-year deal with O'Day.
"It's something he told us that he was interested in," Duquette said. "He's such a dependable performer and a real top quality relief pitcher. We thought that was worth exploring for the team.
"I did a little work on Darren's background and he's among the top 10 relievers in the business over the last couple of years, and I just thought the overall quality he brings was worth taking a look at on a multi-year basis."