Leading motor retail group, Marshall, have ‘hit the treble’ with the sponsorship of a trio of leading professional darts players for the 2021 season. The sponsorship includes World #1 and the recently crowned PDC World Champion, Gerwyn “Iceman” Price, Two-time World Championship Finalist Simon “The Wizard” Whitlock and one of the sport's emerging stars and 2020 International Darts Open winner, Joe “The Rockstar” Cullen.