Arsenal's Premier League campaign continues at home to West Ham United on Tuesday night and Arsene Wenger knows that it is a must-win fixture.
Everton climbed above the Gunners into fourth spot on Saturday thanks to their 1-0 victory at Sunderland. If Arsenal are to qualify for the Champions League, all of their remaining fixtures are must-win games.
West Ham look certainties to stay up after a good run of form, but Sam Allardyce is not one to give up at the end of the season and his side will be hungry for a shock win.
Nacho Monreal misses out for Arsenal after being stretchered off in Saturday's FA Cup win against Wigan Athletic but Kieran Gibbs should be fit enough to play having looked bright when he came on in that same game.
Alex Oxlade-Chamberlain and Aaron Ramsey both looked drained on Saturday and Wenger says they are both uncertainties due to muscle tightness.
Due to the injuries in midfield, Kim Kallstrom may be handed his first start since joining from Spartak Moscow in January.
Olivier Giroud is expected to return up front, despite Yaya Sanogo's bright performance in the Gunners' last outing.
Sam Allardyce says that Kevin Nolan is his side's main injury doubt; the influential captain has a hamstring injury picked up against Liverpool and may not be risked.
George McCartney and Joey O'Brien should be fit enough to make their returns to the Hammers' starting line-up.
Arsenal: Szczesny; Sagna, Mertesacker, Koscielny, Gibbs; Flamini, Arteta; Chamberlain, Cazorla, Kallstrom; Giroud
West Ham: Adrian; Reid, Tomkins, O'Brien, Armero; Noble, Taylor; Nocerino, Diame, Downing; Carroll
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