Wily Mo Pena has a .253 batting average with 77 home runs in his career. (AP)

The Mets signed outfielder Wily Mo Pena to a Minor League contract and have assigned him to extended Spring Training, the New York Post reported Monday.

After extended Spring Training, Pena, 27, will report to Triple-A Buffalo, the report said.

The right-handed-hitting Pena hit .205 in 64 games for the Nationals last season. For his career, Pena has a .253 batting average with 77 home runs and 225 RBIs in 560 games with the Reds, Red Sox and Nationals starting in 2002.

Last month, Pena refused a Minor League assignment from Washington and was granted his unconditional release. He originally signed with the Mets as an amateur free agent in 1998.