The 24-year-old Irishman is then expected to make a permanent switch to the Britannia Stadium.
The £175,000 signing from Mansfield in June 2004 was part of the team which won the Championship title in his first season at the Stadium of Light.
He scored only three goals during their short stay in the Premiership and has made 13 appearances this season."
Courtesy : BBC Sport News
Not much time wasted replacing Luke Chadwick.......and if this( LINK) is anything to go by things are beginning to look very interesting indeed.