Jose Mourinho gave Arsenal a tactical lesson, according to Freddie Ljungberg, who says the nature of the defeat to Tottenham "hurts".
Arsenal suffered their sixth loss of the season in the North London Derby at the Tottenham Hotspur Stadium on Sunday, and slipped to 15th in the Premier League standings as a result.
Son Heung-min's stunning long-range strike set Spurs on their way to victory in the 13th minute, with the South Korean allowed to run through on goal after picking up a pass from Harry Kane on the halfway line before curling the ball into the far corner of the net.