Powerhouse: Romelu Lukaku's a physical specimen no doubt, but can he find the back of the net? (Photo: AFP)
1 / 5
2 / 5
Shot-stopper: Will Loris Karius (C) be smiling after full-time on Saturday?
3 / 5
Goal Machine: Mohamed Salah can't stop scoring at the moment, can United keep him quiet? (Photo: AFP)
4 / 5
Stalwart: Chris Smalling's (L) got his share of the flak of late, how will he respond?
5 / 5
Midfield General: Can Paul Pogba deliver a coming-of-age performance at Old Trafford?
