The Reds traded struggling outfielder Jonny Gomes to Washington for two minor leaguers, then called up Yonder Alonso to take his spot on the roster.
Gomes was part of the Reds' surge to the NL Central title last season, but slumped badly this year. He's batting .211 with 11 homers and 31 RBIs.
The Reds obtained left-hander Chris Manno and outfielder Bill Rhinehart from Washington. The Reds included cash in the deal to pay for Gomes' salary.
Alonso was the seventh overall pick in the June 2008 draft. The career first baseman has been moved to the outfield in the minors.