The Blues can move 12 points ahead of Arsene Wenger's side with victory this weekend but the Frenchman says his former side must believe they can win
Robert Pires believes the Premier League title race will be over if Chelsea beat Arsenal at Stamford Bridge on Saturday.
Antonio Conte’s league leaders go into the game nine points clear at the top of the table, having lost just three times so far this season.
One of those defeats was inflicted by Arsenal at the Emirates, in a 3-0 win back in September, but defeat on Saturday would see the Gunners fall 12 points behind the Blues.