The game ended in a 2-2 draw, with the Gunners getting a stoppage-time equaliser.
He said he would contest his FA charge "100 per cent", adding: "You can listen to every interview I said and I stick to everything without any problem".
His Arsenal manager Arsene Wenger hailed his display as the Gunners grabbed a point after a late Hector Bellerin strike pulled the home side level after Marcos Alonso thought he had grabbed the victor for the West Londoners minutes earlier.
Assistant Steve Bould will now be the leading presence on the touchline for Sunday's FA Cup third round tie against Championship side Nottingham Forest at the City Ground and the away leg of Arsenal's Carabao Cup semi-final meeting with Chelsea on Wednesday in addition to next weekend's top-flight trip to Bournemouth. I knew before the game that the last 20 minutes would be hard for us because we had a big disadvantage with the schedule. Both had clear chances to score, but both fluffed their lines.
French global striker Lacazette, a club-record £46.5 million summer buy from Lyon, went into this match having failed to score in his previous six outings for Arsenal. At the other end Chelsea carved the hosts open only for Alvaro Morata and Cesc Fabregas to waste clear chances.
The Arsenal midfielder was right to be cautioned in the first half when he brought down Cesc Fabregas with a reckless tackle.
Replacing Diego Costa was also going to be tough, but, on the night his predecessor was marking his second Atletico Madrid debut with a goal, the Chelsea new No. 9 failed to deliver again.
It seems inevitable that Sanchez will go, with Manchester City his preferred destination.
Oh so close for Chelsea, and after the game, Eden Hazard rued the missed chances.
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