Manchester United v Arsenal: Six things we learned
Robin van Persie is over the Gunners & Mertesacker is indispensable
A Robin van Persie goal was enough to grant Manchester United a crucial 1-0 win over league leaders Arsenal.
With Arsenal coming out of a tough two weeks of fixtures, David Moyes' men took full advantage of their lethargy to get themselves back in the title race.
Arsenal failed to get going and despite some chances late in the second half, United held on for the win.
Lets take a look at six things the game taught us about both teams.