Arsenal striker Gabriel Martinelli was removed from Tuesday's match against Manchester City with an ankle problem, a bitter blow for a player who only just returned from a long-term knee injury.
The 19-year-old assisted Alexandre Lacazette's equaliser in the first half but just before the break, he was involved in a collision with City goalkeeper Zack Steffen that left him writhing in pain on the ground.
Joe Willock picked out Martinelli with a through ball but Steffen came far off his line to make a sliding clearance, catching the Brazilian's ankle in the process
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Martinelli eventually returned to the match but was in some pain as the half-time whistle sounded.