SUNDERLAND, England — Liverpool striker Luis Suarez scored twice on his return to Premier League action after five months out due to a ban for biting, helping his team beat last-place Sunderland 3-1 on Sunday and climb to second in the standings. Daniel Sturridge put Liverpool ahead in the 28th minute before setting up both goals for fellow forward Suarez, who doubled the lead eight minutes later and then wrapped up victory in the 89th. Italy forward Emanuele Giaccherini had reduced the deficit in the 52nd for Sunderland, which remained rooted to the bottom on just one point from six games. It was the home side’s first league match since firing maverick Italian coach Paolo Di Canio last weekend and it battled gamely under interim manager Kevin Ball, who is in the frame to take charge on a permanent basis. But Sunderland was ultimately undone by Liverpool’s razor-sharp front pairing. Their form will be vital if the 18-time champions are to stay in contention in what could prove to be an open title race this season given the frailties shown by Manchester United, Manchester City and Chelsea so far. With no European football to clutter its schedule and already out…