Oliver Gildart's two second-half tries give Hull Kingston Rovers a Grand Final clash with Wigan Warriors in next week's Super League Grand Final.
Betfred Super League play-off semi-final
Hull KR (12) 20
Tries: Lewis, Burgess, Gildart 2 Goals: Mourgue 2
St Helens (0) 12
Tries: Cross, Robertson Goals: Lomax 2
Sin-bin: Welsby (12)
Oliver Gildart's two second-half tries kept Hull KR on course for the treble by seeing off St Helens in the Super League play-off semi-final.
The Robins set up a rematch of last season's Grand Final against Wigan Warriors next Saturday (18:00 BST) with a powerful first-half display and then withstood the inevitable Saints fightback in the second half.
Mikey Lewis opened the scoring and then Gildart brilliantly set up Joe Burgess as Rovers made the most of having the winds of Storm Amy at their backs in the opening 40 minutes.
Deon Cross hit back after the break for Saints, but Gildart's double meant that a late Harry Robertson try could not stop their march towards Old Trafford.
More to follow
Hull KR: Mourgue; Davies, Hiku, Gildart, Burgess; Lewis, May; Sue, Litten, Waerea-Hargreaves, Hadley, Batchelor, Minchella
Interchanges: Luckley, Whitbread, Martin, Broadbent.
St Helens: Sailor; Bennison, Robertson, Whitley, Cross; Welsby, Lomax; Walmsley, Clark, Lees, Sironen, Wright, Knowles.
Interchanges: Mbye, Bell, Delaney, Stephens.
Referee: Liam Moore.
Category: General Sports