Tomas Rosicky
Rosicky.

Arsenal Manager Arsene Wenger has revealed Thomas Rosicky may miss Saturday's crucial Premier League game against Chelsea due to a minor injury in his ankle.

The Czech midfielder led the Gunners to a 1-0 victory in their last Premier League game against north London rivals Tottenham, scoring the early winner and helping his team to defend the result in the second half to grind out three vital points in the title race.

However, his participation against Chelsea is uncertain as his manager has revealed that Rosicky suffered a minor injury to his ankle and is due to have a medical test to find out whether he is available to play at Stamford Bridge on Saturday.

"We have a doubt about Rosicky. He will have a test this [Friday] morning on his ankle. Apart from that we have no major problem. That issue will be decided after training, everybody else will be available, " Wenger told Arsenal's official website.

If the doctors don't give Rosicky the green light to play the derby, the Czech midfielder will join an injury list which already includes Aaron Ramsey, Mesut Ozil, Jack Wilshere and Theo Walcott.

The German playmaker suffered a hamstring injury in the Champions League game against Bayern Munich and he may not return until mid-April with a grade-two hamstring strain.

Meanwhile, Ramsey hasn't featured since the Boxing Day win over West Ham United and, having suffered numerous setbacks in his recuperation from a thigh injury, his return is still uncertain.

Speaking ahead of the Tottenham game last week, Wenger said about Ramsey: " We have to be very cautious with him, when will he be back? I believe it's two more weeks now."