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3. Christhian Mosquera

Christhian Mosquera came off the bench early due to William Saliba's muscular injury. In such a big match with the responsibility of replacing Saliba, the young Spaniard did a fantastic job.
Mosquera made four tackles, three clearances and blocked two shots after coming on at Anfield.
His mature performance bodes well for the Gunners as it is proof that they now have the cover they need for either Saliba or Gabriel should they need it.