Derks (born 29 April 2008 in Oss) made her debut in the Azerion Women’s Eredivisie for PSV on 11 May 2024, in a match against Excelsior Rotterdam. Earlier this month, the youth international won the European Championship with the Netherlands U17 team. In the final against Norway (2-1 win), Derks scored and was named Player of the Tournament thanks to her standout performances.
Technical Director Alex Kroes: "We are absolutely delighted to welcome Ranneke to our club. She is a talented forward who can beat defenders with ease. It’s no coincidence she was recently named Player of the Tournament at the U17 Euros. We believe Ranneke, with her pace and creativity, will be a fantastic addition to our squad and has a bright future ahead of her at Ajax."