With the World Grand Prix starting on Sunday October 3, DartsNews.com continues to look back at some of the best matches and moments in the history of the unique tournament.
Back to 2015 we go and Michael van Gerwen was the defending champion and he reached the final once more.
But he went up against Robert Thornton who produced a stunning upset in a 5-4 victory over 'Mighty Mike'.
Watch the highlights of the final below.