Manchester United legend Andy Cole believes Arsenal captain Cesc Fabregas holds the key to today's big match.
United go to the Gunners today for a huge top-of-the-table clash.
Cole told manutd.com: "United are going to have to watch Cesc Fabregas. He makes Arsenal tick. He has great passing ability and now he's getting in the box a lot more and scoring more goals - the boy can finish. To be playing at that level at his age is frightening - he's not even 24 yet.
"Arsenal have always stepped up when we've gone to their place. I know we beat them convincingly at the Emirates in the Champions League last season, but they seem to have a bit of a hoodoo over us in league games there. It's a hard one to call because you know Arsenal will attack. They need to win the game - and so do we."