Vonk played as centre back and began his career in 1986 with
AZ '67 for whom he played 111 times and scored 8 goals. He transferred to
SVV Dordrecht in 1991 and played 51 times for the team scoring 1 goal. Then in 1992 he transferred to
Manchester City where he enjoyed three successful seasons playing a total of 91 league games for the club, scoring 4 times. He had been brought in by then City manager
Peter Reid costing £500,000. He formed a successful partnership with
Keith Curle in the centre of the City defence. In 1995, he criticised then City manager
Brian Horton in the
News of the World which earned him a suspension and being fined 2 weeks wages. Subsequent City manager
Alan Ball sold the player to
Oldham Athletic for £350,000, where he played 5 times and scored 1 goal. He was then transferred to
Sheffield United where he played until 1998. He played 37 times for the Blades scoring twice. His time with the club was hampered by injuries. In 1998, he returned to the Netherlands and began playing for
MVV. His injuries continued however and he was released by the club when they were relegated. ==Coaching career==