Jeff Zrebiec of the Baltimore Sun has reported that the Orioles have agreed to terms with Koji Uehara for 2011.

The Orioles have agreed to terms with Koji Uehara, their best relief pitcher for much of last season, on a one-year deal with a vesting option for the 2012 season, according to a source familiar with the negotiations.

The exact terms aren’t known, but the option won’t be hard to obtain if Uehara is able to stay healthy through the majority of the season.

The Orioles did not offer Koji arbitration, but were able to bring him back. We’ll post details of the contract when they emerge on the interwebs.