Manchester United boss Jose Mourinho insists he is not worried by the current eight-point gap to leaders Manchester City and is focused only on Saturday's game at Arsenal. United travel to the Emirates to face Arsene Wenger's team this weekend in search of a fourth consecutive Premier League win. Mourinho's side are eight points behind their Manchester rivals after 14 games - thanks to City dropping just two points this season - though he maintains that it's simply "one game at a time" for his squad, a method he's thanked tennis legend Bjorn Borg for. "I play a game at a time. And I think that's the way to do it," Mourinho said during his pre-match news conference. "Yesterday I was watching an interesting movie: Bjorn Borg vs John McEnroe. And Borg's coach was telling him that all of the time 'one point at a time' - think just about one point at a time, and I tell my players to think just about the game.