Juan Mata admits Chelsea cannot afford another slip after defeat at Stoke City.
Mata says the club's coming match against Crystal Palace is of the utmost importance to get the their league campaign back on track.
"[Crystal Palace] Another key game to stay at the top ahead of the busy Christmas agenda," he said.
"We have to get back to the victory trail in such a tough month like this."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball