Wayne Rooney scored a hat trick as champion Manchester United humiliated Arsenal with an 8-2 win on Sunday, the Gunners' heaviest defeat under Arsene Wenger. Having seen cross-city rival Manchester City thrash Tottenham 5-1 earlier in the day, United responded in style with Ashley Young, Danny Welbeck, Nani and Ji-Sung Park joining Rooney on the scoresheet. More...