Chico spent most of the season in the Minors, going a combined 7-9 with a 3.75 ERA with Double-A Harrisburg and Triple-A Syracuse. He made one big league appearance, allowing two runs in five innings for Washington.
In 2007, Chico was arguably Washington's best pitcher. He led the team in innings pitched  and wins [nine], but it went downhill after that. He missed most of 2008 and part of the following season after undergoing elbow reconstruction surgery.