Arsenal, Bayern Munich and Manchester United will all have scouts present to watch Ajax against Real Madrid in the Champions League.
According to Calcio Mercato, all three teams will take in the game, with five players named as potential targets that the clubs could have their eyes on.
Ajax are facing a fight to keep hold of their best players and according to the report Kasper Dolberg, Matthijs de Ligt, Noussair Mazraoui, Donny van de Beek and Hakim Ziyech could all be on their radar.
The Dutch side welcome Real Madrid to the Johan Cruijff ArenA on Wednesday night.
De Ligt has been heavily linked with moves away from Ajax, but it has been claimed that a Premier League move is unlikely.
Meanwhile, creative midfielders van de Beek and Hakim Ziyech have both been impressing in the Eredivisie this season.
Dolberg has long been tipped for big things at Ajax and will be looking to add to his goalscoring tally against the Spanish giants.