[1] Van Wonderen was born in Bergen, North Holland, and played professional football for NEC, NAC Breda and Feyenoord.

While at Feyenoord, Van Wonderen won the Eredivisie in 1999 and the 2001–02 UEFA Cup, as the club beat Borussia Dortmund 3–2 in the final at De Kuip.

[2] After two years, McClaren left Twente in the summer 2010 and following that, van Wonderen indicated that he wanted to take a step back to spend more time with his family.

[5] However, by the request of his former Twente-colleague Alfred Schreuder who had been appointed head coach of Twente, Van Wonderen returned to the club as an assistant manager at the end of February 2013.

[9] On 29 February 2020, Go Ahead Eagles confirmed that Van Wonderen would become the club's new head coach for the upcoming season.