Hull KR secured their place in the Super League Grand Final with a 20-12 victory over St Helens at Sewell Group Craven Park.
Hull KR dominated the first 40 to take a 12-0 half-time lead thanks to an Arthur Mourgue penalty, converted Mikey Lewis try, and unconverted Joe Burgess effort.
Eight of those points came when Jack Welsby was off the field as he was sent to the sin bin for a professional foul on Jez Litten, the referee judging that he had pulled the KR hooker back as he chased his own kick.
Deon Cross and Harry Robertson hit back for St Helens but a double for Oliver Gildart sealed the deal to send Willie Peters' side into the Grand Final for a second year in a row.
It means Hull KR are still onto complete what would be a historic treble after winning the Challenge Cup and League