Aston Villa are interested in Sunderland midfielder Jack Colback.
The Birmingham Mail says the midfielder is out of contract this summer and is expected to leave the Stadium of Light despite being offered a new deal.
The 24-year-old Black Cats academy graduate is being tracked by a host of Premier League clubs, believed to include Villa.
But the uncertainty at the club and Colback's increased personal terms could see the claret and blues lose out to one of their top-flight rivals, with West Ham reportedly ready to offer him a lucrative deal.
