If Arsenal win today, they go within one point of Chelsea at the top of the table (having played the same number of games because Chelsea's game this weekend was cancelled due to bad weather). Everton will be no push over, especially given the cold weather conditions. It's a day where the toughest team, rather than the most talented team, is likely to win.
UPDATE: 1 all at halftime.
FULL-TIME UPDATE: Arsenal are lucky to escape with a 2-2 draw.