Mathieu van der Poel is a Belgian-born Dutch professional cyclist who rides for the UCI WorldTeam Alpecin–Deceuninck. He competes in the cyclo-cross, mountain biking, gravel and road racing disciplines of the sport. From Wikipedia
The 30-year-old Flemish man is under investigation after striking the cyclist during Paris-Roubaix, while race organizers decline to file a complaint.