The Frenchman feels a Blues win would end hope any chance of Antonio Conte's men being caught at the top, adding this is the Gunners' last chance
Arsenal great Robert Pires believes the Premier League title race will be over if his former club lose to runaway leaders Chelsea on Saturday.
Arsene Wenger's side went down to a shock 2-1 defeat at home to Watford on Tuesday, meaning Chelsea's 1-1 draw at Liverpool left Antonio Conte's men nine points clear at the summit.
Chelsea have been in formidable form since Conte switched to a 3-4-2-1 system on the back of a chastening 3-0 loss at Emirates Stadium in September.