DAVID LUIZCB, Arsenal
Struggled in the opening 20 minutes as Olympiakos jumped out of the blocks, but calmed down the defence throughout the remainder of the match and controlled the game throughout. His passing was a little slow and ponderous at times, which is surprising given his usual qualities of distribution. Defended stoutly in the second half and was rarely dragged out of position.
SHKODRAN MUSTAFICB, Arsenal
Mustafi might be enjoying his best run of form in an Arsenal shirt. He has cut out the silly mistakes, is calm and composed positionally, defended crosses superbly, protected Sokratis on the right side, and was always connected with his partner, David Luiz. Quite for how long Mustafi can maintain this form remains to be seen, but he was very solid once again here.