#4 Flop: Davinson Sanchez

Here's a center half who at times, looked like a fish out of water when Arsenal brought the double team in the form of Kolasinac and Aubameyang against him. Sanchez was tasked with filling the right back's role in Kyle Walker-Peters' absence.
Fair to say, Sanchez struggled to keep pace with the overlap of Kolasinac, as either he failed to get close to the wing-back, or pick the run of Aubameyang inside the box. As seen in the third minute of the fixture itself, Sanchez was caught napping with Kolasinac drifted out wide to cross.
As the match wore on, Sanchez began to leave more gaps in behind him and struggled to find a quick pass or clear the ball. Going forward too, he was almost absent in terms of supporting Son and supplying crosses.
While defending set-pieces too, Sanchez, who was at the back of the cue, failed to win the first ball. His evening was summed up when in the 83rd minute, the 23-year-old's clearance landed straight to Mkhitaryan in the box, almost gifting Arsenal their third.