The Nationals' left-hander cleared waivers and rejected his outright to Triple-A, opening a roster spot.
Cionel Perez rejected his outright assignment to Triple-A Rochester and elected free agency, the Nationals announced Monday. Perez had cleared waivers after being outrighted on May 2; right-hander Orlando Ribalta was called up to take his roster spot.
Source: MLB Trade Rumors
