In the final minute of the Everton versus Chelsea match at Goodison Park on 7 December 2002, and with the score 3–1 to the away side, he sent off David Unsworth of Everton for "violent conduct" (using his knee) after an incident involving Chelsea's Danish winger, Jesper Grønkjær. After the match was over, Everton manager David Moyes had to be dissuaded from confronting Wolstenholme in his dressing room by five police officers. The referee would only say: "Striking an opponent is a red-card offence and it doesn't matter what you strike him with. Things will have to go through the proper channels now and I'll probably look at it again." Despite this, the red card was eventually confirmed, although Everton did manage to prevent Wolstenholme from being involved during their match against Bolton 21 days later, Matt Messias replacing him as fourth official.