Arsenal midfielder Alex Oxlade-Chamberlain faces up to a month out with a hamstring injury.
Midfielder Mathieu Flamini is back in contention for Saturday's Barclays Premier League match against West Ham after a hamstring problem.
Club captain Mikel Arteta (ankle) is set to step up his rehabilitation, as is defender Gabriel (hamstring), but Jack Wilshere (ankle) is still a few weeks away from a return.
Provisional Squad: Ospina, Monreal, Koscielny, Mertesacker, Bellerin, Coquelin, Cazorla, Ozil, Sanchez, Welbeck, Giroud, Szczesny, Walcott, Chambers, Gibbs, Akpom, Flamini, Rosicky.
Source: PA-WIRE
