Viera hasn't looked impressive until recently to be fair. Yes there were moments of brilliance, but given what we want to achieve those moments need to happen for 90 min, every game.

I'm assuming it's a confidence thing in that Viera has finally settled into the team and his role within in and is now proving he is a great player. I think Havertz will have the same issue and will need awhile to settle and grow his confidence to a point where he becomes the great player I know he is.

Give it a while and we'll be saying the same about Havertz