By Richard Clarke
Both midfielders picked up their problems in the 2-2 draw at Tottenham last Saturday. The Czech international may return in time for Chelsea's arrival at Emirates Stadium next Sunday however his Swedish counterpart may not be so lucky.
"Rosicky and Ljungberg have hamstring injuries," said Arsène Wenger at his pre-match press conference on Friday.
"Rosicky might be available for Chelsea. I don't think Freddie will be. It is a recurrence, so you have to be a bit more careful. It is not a big [problem]. But he has pain where he had it before so he will be out for a few games."
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