Sunderland have been urged not to ‘gamble’ on Yann M’Vila in January. Sunderland’s options in midfield have looked sparse this season, with Corry Evans yet to return from an injury that has kept him sidelined for the past 12 months. Jay Matete was also out of action since pre-season, making his first appearance on the bench during the defeat to Ipswich Town. With Pierre Ekwah really struggling to impress in recent weeks and Chris Rigg not really getting a sniff of first-team action, Sunderland fans have been hopeful that the club will invest in a new, experienced midfielder to bolster their ra…