Tottenham started well in their new formation at Arsenal, with Kevin Wimmer one of three centre backs in a back five.
But having failed to create any meaningful chances in the first half, Arsenal made Spurs pay with a goal just before the break.
Mesut Ozil’s free-kick was inadvertently headed into the Tottenham goal by Wimmer.
It was a controversial goal given that two Arsenal players were offside, which perhaps influenced Wimmer’s decision to get something on the ball.
Here’s the goal.