#1 Robertson and Arnold vs Lichsteiner and Kolasinac
One of the vital reasons for Liverpool's successful campaign has been the splendid performances of their full-backs. Andy Robertson, in particular, has been instrumental in the Reds' wins so far, this season.
This duo has been involved in 7 goals directly apart from fulfilling their defensive duties by securing 12 clean sheets in 19 games. Jurgen Klopp has made perfect use of the attacking threat these two possess by providing them full freedom to join the attacks and get into goal scoring positions.
The overlapping runs made by these two have been troubling the defences, which in turn has created more space for the attackers to pick their passes or make an attempt for a goal. These two have been blessed with exceptional crossing abilities and have managed to pump in a combined 150 crosses into the box so far this season.
Having said that, it is going to be tough to contain these two for an Arsenal side which has already been hit with a couple of injuries to its key players at the back, including the likes of Mustafi and Hector Bellerin.