LONDON ENGLAND - FEBRUARY 20: Alex Song of Arsenal challenges Stephen Dawson of Leyton Orient during the FA Cup sponsored by E.ON 5th Round match between Leyton Orient and Arsenal at the Matchroom Stadium on February 20 2011 in London England. (Photo by Shaun Botterill/Getty Images)
Kickoff: Today, 2:45 PM EST
TV Coverage: Fox Soccer Channel, then foxsoccer.tv on delay starting after the match
Arsenal: Almunia; Eboue, Squillaci, Ignasi Miquel, Gibbs; Denilson, Diaby; Bendtner, Conor Henderson, Rosicky; Chamakh
Leyton Orient: Jones; Whing Chorley Forbes Daniels; Revell Dawson Crowe Carroll; Cox, McGleish.