Cornerback Phillip Buchanon has switched agents right in the middle of free agency, the 10th-year veteran announced on his twitter account.

Buchanon, who served primarily as the Redskins' third cornerback last season, ended his relationship with Drew Rosenhaus and has hired Joel Segal. Buchanon didn’t give a reason for the switch, and didn’t return a message left for him.

Buchanon’s contract is up, and he has listed Washington, Tampa Bay, Miami, Pittsburgh, Baltimore, New Orleans, Oakland and the Jets as teams with which he has interest in signing.

The Redskins are believed to have interest in re-signing Buchanon, who last season recorded 49 tackles, two interceptions and two forced fumbles.

Buchanon previously was among five Redskins free agents – Santana Moss, Rex Grossman, Stephon Heyer and Rocky McIntosh being the others — that also were clients of Rosenhaus.

In all, the Redskins entered this week with 12 free agents, but Moss is the only one of that has re-signed thus far.