The chances of the women's team reaching the group stage are in the balance after a late goal by the Dutch side.
Romee Leuchter scored a tap-in to level the tie at 2-2 in the dying moments of the game.
The winning goal was ruled out for being in an area where it wasn't clear.
The team needs to win in Amsterdam next week in order to make the group stage.
There is a chance of a penalty shootout if there is a draw.
Leuchter opened the scoring at Meadow Park for Ajax after 17 minutes, before Stina Blackstenius struck to level the scores.
Blackstenius, who scored in Friday's WSL victory against the Seagulls, scored with a volley after the ball rebounded off the bar.
Kim Little scored from the penalty spot after Beth Mead was tripped by Soraya Verhoeve to give the home side the lead.
Leuchter scored her second goal of the evening seven minutes from the end, despite the fact that the Gunners had the better opportunities.
Formation 4-2--3-1.
16Maritz6Williamson2Carvalho Souza7CatleyFormation 4-1-5-1 is formed.
2van der Most26Kardinaal4Doorn5Verhoeve15Grant10Noordam23Pelova11Weerden
All Rights Reserved © 2024
