DC: Gabriel
With some doubts over Per Mertesacker, who went off injured against Reading, Gabriel may be in line for a start for Arsenal against Chelsea.
DC: Laurent Koscielny
A key starter for Arsenal, Laurent Koscielny should line up alongside Gabriel and will need to show his experience and quality in this big match at the Emirates.
MC: Francis Coquelin
A rock-solid defensive midfielder, Francis Coquelin has had a great season for the Gunners and will face one of his biggest tests here.
MC: Aaron Ramsey
Moved into a deeper role after starting on the right against Reading, Aaron Ramsey would perhaps be better suited to playing centrally against the Blues.
