Arsenal and Chelsea starting line-ups

Arsenal: Cech; Bellerin, Mertesacker (c), Koscielny, Monreal; Flamini, Ramsey; Walcott, Campbell, Ozil; Giroud.
Chelsea: Courtois; Ivanovic, Zouma, Terry (c), Azpilicueta; Mikel, Matic; Willian, Fabregas, Oscar; Diego Costa.