Aston Villa boss Unai Emery admits he's been impressed by Ross Barkley this season.
Villa face former player Barkley and Luton this weekend.
Emery said: "He is playing very well and now they are in a very good moment. I think they are feeling confidence and are playing feeling strong. Maybe not with good results because they didn't win, but they are paying very, very well.
They are aggressive, man-to-man. They play in combinations, Barkley is a good moment and I don't know if they will play with some players who are doubts, but the structure is not changing. They are demanding a lot against Manchester United, Manchester City, Liverpool away too.
"They lost, but they played fantastic matches. Tomorrow is going to be very, very difficult."
