Former Aston Villa defender Steve Staunton is a fan of their young left-backs.
He told AVTV: "Eric has come through the ranks and he's done very well. I've been impressed with him.
"I know he's mainly a right-back but he's looked comfortable on the left too. Young Joe has come in from Middlesbrough and he looks a terrific prospect too.
"He's got a lovely left foot and a bit of pace, which I wouldn't know anything about! He's done well. I watched him against West Brom and he looked good. That will fire up the competition at left-back.
"You need that. Competition is essential at any club. If you haven't got it players get complacent."