Parkin who scored 26 goals last season, and has scored 13 this season at the half way staged has been linked with moves to Reading, Southampton, Sheffield United and Sunderland in recent weeks.
Parkin has recently signed a contract extension at the County Ground which now sees his contract running until the summer of 2006.
Although there has been no official approach Devlin has said that othr clubs have enquired about Parkin's availabilty, but talks have not gone any further.