Newcastle United’s squad should not be any weaker when they face Aston Villa on Tuesday night. The Magpies returned to action on Saturday, beating Fulham 2-0 in the FA Cup to progress to the fifth round. They will face either Blackburn Rovers or Wrexham in the next round. But now Eddie Howe can turn his attention back to the Premier League, where he faces a tricky trip to Aston Villa. Unai Emery’s side are flying this season, looking to accomplish what Newcastle did last season and qualify for the Champions League. As for Newcastle, they are looking to salvage their Premier League campaign. Th…