WHAT TO KNOW BEFORE THE KICK-OFF:
 
West Ham United have won one of their last 21 Premier League matches against Arsenal (D4 L16), a 2-0 win at the Emirates in August 2015.
 
Arsenal are unbeaten in 11 away matches at West Ham in all competitions (W8 D3) since losing 0-1 in the Premier League in November 2006.
 
West Ham have lost more Premier League games against Arsenal (29) than they have against any other side.
 
15 of the last 17 goals scored in Premier League matches between West Ham and Arsenal have been scored in the second half.

West Ham have conceded at least once in their last eight home Premier League games, their longest run without a clean sheet in the top-flight since a run of 12 between April and December 2009.
 
Arsenal haven’t failed to score in a Premier League game since the opening game of the season against Man City (0-2), netting in their last 20 matches in the competition.
 
LIVE: