Ajax defeated Tottenham Hotspur 1-0 on the road to claim a first-leg advantage in their UEFA Champions League semi-final on Tuesday.
Donny van de Beek broke the deadlock after only 15 minutes as Ajax flew out of the blocks, and the Dutch side should have further punished the Premier League team in a frantic first half.
Spurs manager Mauricio Pochettino switched his tactics and formation as the interval approached, and the home team were much more effective after the restart.
Ajax failed to keep possession with the same conviction late in the game, but the visitors were celebrating at the final whistle.