TEAMS: Arsenal's Giroud, Koscielny and Szczesny return, Hammers recall Nocerino and Jarvis

The Gunners make five changes from the side that beat Wigan in the FA Cup semi-final, with Olivier Giroud returning up front to replace Yaya Sanogo.
Laurent Koscielny comes in for the injured Nacho Monreal, while Aaron Ramsey, Alex Oxlade-Chamberlain and Lukasz Fabianski drop to the bench in favour of Kim Kallstrom, Tomas Rosicky and Wojciech Szczesny.
The Hammers see just two changes made from the defeat to Liverpool, with Antonio Nocerino and Matt Jarvis coming into the starting XI.
Arsenal: Szczesny, Sagna, Mertesacker, Koscielny, Vermaelen, Arteta, Rosicky, Kallstrom, Cazorla, Podolski, Giroud
Subs: Fabianski, Bellerin, Jenkinson, Oxlade-Chamberlain, Ramsey, Sanogo, Akpom
West Ham: Adrian, Reid, Tomkins, Jarvis, Armero, Carroll, Noble, Demel, Diame, Downing, Nocerino
Subs: McCartney, Vaz Te, Taylor, Jaaskelainen, C.Cole, J.Cole, Johnson