Sunderland face losing another one of their fan favourites this summer. Sunderland supporters have already accepted the impending exit of star man Jack Clarke, with the 15-goal winger heavily linked with a £20m plus move to the Premier League. The exciting breakthroughs of many of their young stars have unsurprisingly resulted in a lot of attention from the top flight, with the likes of Anthony Patterson and Dan Neil also admired by some top clubs. Sunderland did ensure to tie down a number of their key players to new contracts over the last year, with Trai Hume, Anthony Patterson, Patrick Rob…