Unai Emery's Gunners have won their last nine games in all competitions, including six straight in league play.
They say Mesut Ozil is one of the best players in the Premier League, when he wants to be.
He was then heavily involved in two goals for substitute Pierre-Emerick Aubameyang - who had also netted twice off the bench at Fulham last time out - with Arsenal eventually running out 3-1 winners at the Emirates Stadium.
While Arsenal were flat-footed from the off, the visitors started particularly brightly with Kelechi Iheanacho twice threatening in the opening exchanges.
The 30-year-old was back in the starting XI on Monday night at the Emirates - having missed the trip to Craven Cottage before the global break - and was handed the captain's armband.
Henrikh Mkhitaryan had a wonderful chance to send Arsenal ahead early in the second period following a mix-up inside the Leicester box, but the Armenian fired just wide of the post from a risky position.
"I'll remember this night for Mesut Ozil's brilliance".
Elsewhere, Cech can be expected to replace Bernd Leno in goal, Ozil will likely be preferred to Alex Iwobi in the midfield while Aubameyang could feature behind Alexandre Lacazette in attack.
It was perhaps little surprise that Arsenal fans gave Ozil a standing ovation when he was brought off for Aaron Ramsey on 80 minutes.