Arsenal manager Mikel Arteta risked getting himself in a spot of bother after appearing to mock the referee in the draw with Atalanta. In the opening fixture of the new Champions League season under the revised format, Arsenal played out a 0-0 with the Europa League winners.

Mikel Arteta praised Riccardo Calafiori after the summer signing made an impressive cameo appearance as a second half substitute against Atalanta. The Italy international has had to bide his time for opportunities since his arrival from Bologna in the summer and missed the north London derby as a result of the calf injury he picked up playing for his country a fortnight ago.