Arsenal midfielder Aaron Ramsey will miss at least a month with hamstring injury, Dominic Fifield of The Guardian reports.
Ramsey left Sunday's 1-1 draw with Tottenham after the first half with the injury. He was replaced by Santiago Cazorla.
Ramsey missed three months last season with a thigh injury that was originally supposed to sideline him for only three weeks.
Arsenal plays Galatasaray in a Champions League match on Wednesday and then play first-place Chelsea in the Premier League on Sunday.
Fifield reports that Jack Wilshere will be able to play against Chelsea and may be fit enough to play on Wednesday as well.
From The Guardian:
Midfield duties will most likely fall on Mathieu Flamini and Alex Oxlade-Chamberlain against the Turkish side, with Francis Coquelin and Abou Diaby alternative options. Arsenal might have considered moving Calum Chambers into midfield but are stretched defensively at present, though Per Mertesacker should be available against both Galatasaray and Chelsea in anticipation of resting during the international break given his decision to retire from international football after the World Cup finals.
Arsenal is in fourth place in the Premier League table after six games with 10 points. The club has not lost this season, but has drawn four times.
- Sarah Barshop