Arsenal are resigned to losing Alexis Sánchez and Santi Cazorla, two of their key attacking options, for the crunch Champions League match against Olympiacos next week.

Sánchez limped out of Arsena’s 1-1 draw away to Norwich City on Sunday but the club are hopeful that the Chile forward has pulled rather than torn his hamstring, meaning he is out for weeks rather than months, while Cazorla has suffered a knee injury.

Sánchez will undergo a scan once the swelling has reduced later today, which should provide Arsenal with a more detailed timetable for his recovery. Other than the Olympiacos game, Arsenal’s upcoming fixtures look relatively benign, with Sunderland and Aston Villa their next two Premier League opponents, but Arsène Wenger will be desperate to have