Building materials company Sherwin Williams has stepped up its backing of rugby league through a new partnership with the Rugby Football League.
The long-term deal will see Sherwin Williams become Principal Partner for match officials across all RFL competitions.
Referees, touch-judges and in-goal judges will have Ronseal on their shirts in the UK and Valspar in France and Canada.
Sherwin Williams made its first move into rugby league sponsorship last year when it became an Official Partner of England Rugby League at all levels until the end of 2021.
Ronseal featured on playing shirts across all England programmes in 2019 and the brand will now become an Official Partner of the Challenge Cup featuring on perimeter advertising and interview backdrops at televised games in the club competition.