 He joined Hull Kingston Rovers for the 2008 season after they avoided relegation in 2007's Super League XII.He was named as captain of the Wales squad to face England at the Keepmoat Stadium prior to England's departure for the 2008 Rugby League World Cup.Crusaders and Castleford were interested in signing Mills due to Hull Kingston Rovers looking to release him to make way for Joel Clinton, however he joined (though never played for) newly formed Welsh club South Wales Scorpions.