Lamela's world-class opener was Spurs' only effort on target in the first 45 minutes, and the Gunners made their pressure tell through strikes from Martin Odegaard and an Alexandre Lacazette penalty.
✔️ Erik Lamela: 7.1
The king of the rabona, Lamela struck one of the finest goals you'll see this season. With the ball stuck between his feet his shifted his weight expertly to flip his left foot onto the ball and direct it perfectly into the corner from the edge of the area.
He was by far Tottenham's best attacking player on the day despite only coming on for the injured Son 20 minutes in, but he self-destructed in the second half, being booked before receiving a second when trying to fend off his man and catching him on the face.
Mourinho's face said it all, and their chances of claiming anything from the game went off the pitch with him.
❌ Harry Kane: 5.3
Kane picked up a knock when scoring in midweek in the Europa League, though Jose Mourinho insisted he was fit enough to play.
But he appeared far from it. He didn't manage a touch inside the area in the entire 90 minutes and he looked sluggish and not at the races. In a game were Spurs were ultra-cautious, his impact on the match was less than minimal.
And his late header which found the corner - a good one - being correctly ruled out for offside before crashing a free-kick off the foot of the post, merely compounded his misery in a performance which never really got going at all.
⭐ Martin Odegaard: 7.6
He has taken a month or so to settle in north London but Odegaard is definitely improving with each passing game, and after his thunderbolt in midweek in Greece, he followed up with a man-of-the-match display here.
Odegaard's involvement around the area is increasing in prominence. He had 96% pass completion but half of those came in the final third where defenders are cutting off passing lanes, meaning his passes had to be really at the top level - which it was.
And he got his side level just before half-time, bundling home a deflected effort which set the platform the second-half win.