Arsenal's worst fears confirmed! Riccardo Calafiori LEAVES Italy camp after suffering knee injury with defender now huge doubt for crucial Champions League clash with Real Madrid

The Arsenal right-back will return to London and miss the return leg of the quarter-final tie, having gone down with a knee injury late on in his team's 2-1 loss at San Siro.

While Calafiori is expected to undergo tests in London to discover the extent of the damage, Gianluca Di Marzio reports that he could be out for up to three weeks. That would put him in danger of being ruled out for Arsenal's Champions League clash against Real Madrid on April 8.

Injuries have hindered Calafiori at various points this season, limiting him to 26 appearances in all competitions - starting 16 of those.

Calafiori will hope that the injury is not as bad as initially feared, with Arsenal set to face Fulham, Everton and Madrid in the coming weeks.