Arsenal 4 Crystal Palace 1
Southampton 1 Tottenham 1
With Monreal and Koscielny back, Arsenal quickly found their rhythm.
They ambushed Palace by pushing seven players into the front third, pinned the visitors back into their box, then played through them and round them with ease.
When Xhaka fired over a corner from the right, Monreal headed home from five yards.
1-0 to Arsenal in 5 minutes. Then Monreal cruised to the bye-line and cut the ball back for Iwobi to stab home for 2-0 in 10 minutes.
When another Xhaka corner was hit deeper, Monreal volleyed across the goalmouth and Koscielny prodded home for 3-0 in 13.
After 22, a quicksilver move allowed Ozil to roll the ball back to Lacazette with the sole of his boot, and the Frenchman made it 4-0.
Second half, Cabaye took a corner in 78, Benteke headed to Luka Milovojevic, and the 26-year-old Serbian midfielder chested the ball and smashed it past Petr Cech.
So Nacho Monreal scored one goal and assisted two more.
On Sunday afternoon, after our guests had all gone home, I watched Spurs play at Southampton in the pouring rain. Neither side deserved to win and a Davinson Sanchez own-goal in 14 minutes signalled the kind of afternoon Pochettino was going to have.
Without Eriksen, Spurs were totally average and the Saints were outplaying them.
Even so, I immediately backed Spurs to equalise and Harry Kane did that after 17 min 25 sec.
But Son and Dele Alli were hopeless in the first half.
But left wing-back Ben Davies and centreback Vertonghen both played well throughout.
Last season, with super-competitive athletes Kyle Walker and Danny Rose pounding up the flanks, Spurs used to stretch teams and scare the living daylights out of them. Spurs were an energy team who had a helluva lot of balance and thrust.
Many of their opponents became exhausted and overwhelmed and eventually Spurs finished 8 points above Manchester City (3rd) and 11 above Arsenal (5th).
The Monday Night Football is bottom club Swansea v Liverpool and if Klopp takes three points there Liverpool will be five points above Tottenham with 14 games to play.