Question: Battle of the Buffet contained a studs-up challenge by which retired Dutch footballer?
Sentence (from "Ruud van Nistelrooy"): Rutgerus Johannes Martinus "Ruud" van Nistelrooy (Dutch: "Ruud van Nistelrooij" ; ] ; born 1 July 1976) is a retired Dutch footballer and a current manager for the PSV youth team.
Relevant evidence: Yes