Hector Bellerin will reportedly play no part in Arsenal's Europa League last-16 tie against AC Milan on Thursday due to injury.
The right-back was named on the substitutes' bench for last weekend's 2-1 defeat to Brighton & Hove Albion at the Amex Stadium.
Reports claimed that the Spaniard was furious with manager Arsene Wenger for removing him from the first XI just hours before kickoff, but according to The Mirror, it was a precautionary decision due to a hamstring niggle.
Now, the publication claims that Bellerin has not travelled to Italy for the first leg of Arsenal's last-16 tie against Milan because of a knee problem.
The right-back is believed to have been desperate to play, but Wenger is not prepared to take any risks.