Doubts continue to grow on Wearside about future of their current first choice.
Sunderland will move for highly-rated young Celtic keeper Fraser Forster should current No 1 Simon Mignolet depart the Black Cats this summer, according to reports in the Daily Mail.
New Sunderland head coach Paolo Di Canio is said to be bracing himself for a series of bids for his coveted Belgium international shot stopper when the transfer window once again swings open for business on July 1, with both Premier League giants Liverpool and Arsenal believed to be currently monitoring the player.
And, if Mignolet does decide to depart the north east, then the Italian is expected to immediately make a move for Celtic’s England international, who has been at Celtic Park since signing from Newcastle United three years ago.
In the intervening period, the 25-year-old has proved himself to be one of the brightest and most talented custodians operating on the Continent, with his displays for the Scottish Premier League title holders in last season’s Uefa Champions League in particular catching the attention.