Mikki van Sas, born on 29 February 2004 in Utrecht, started his career at USV Hercules and later the youth academy of FC Utrecht. In 2020, he left for Manchester City, where he developed further. In 2023, he returned to the Netherlands and signed with Feyenoord. Since September 2024, he played on a rental basis for Vitesse, where he made his professional debut. His current club is Wycombe Wanderers.