Dec 05, 2009 7:03 PM EST

There is mutual interest between free-agent pitcher John Smoltz and the Nationals, a source told FOX Sports.

"There is mutual sincere interest," said one source with knowledge of the discussions.

Washington president Stan Kasten previously worked in Atlanta and is a long-time admirer of Smoltz.

Smoltz, 42, would almost certainly prefer to sign with a National League club.

Via FOX Sports