Leeds to face Wigan in Grand Final on 10 October
Leeds Rhinos chasing domestic treble
Roby scored St Helens' opener, Hardaker responded
Walsh drop-goal and Percival try put Saints 13-8 up
Hall and Watkins completed Leeds comeback
Leeds Rhinos v St Helens (20:00 BST)
Leeds Rhinos: Hardaker; Briscoe, Watkins, Moon, Hall; Sinfield, McGuire; Garbutt, Burrow, Leuluai, Ablett, Delaney, Cuthbertson.
Replacements: Keinhorst, Peacock, Singleton, Lilley.
St Helens: Quinlan; Makinson, Percival, Jones, Swift; Turner, Walsh; Masoe, Roby, Amor, Vea, Wilkin, Flanagan.
Replacements: McCarthy-Scarsbrook, Walmsley, Greenwood, Savelio.
Referee: Robert Hicks.
Leeds Rhinos v St Helens (20:00 BST)
Desperate to stop Leeds from winning the treble are St Helens - the last English club to achieve the feat.
Saints, the defending Super League champions, have hit form in recent weeks.
They began the Super 8s with three successive losses, but three consecutive wins - including a 32-18 success at Headingley last month - helped them finish fourth in the table to secure their semi-final spot.
Image source, SWPIX.COMLeeds Rhinos v St Helens (20:00 BST)
Leeds have already plonked two pots in their trophy cabinet this season.
The Rhinos thrashed Hull KR at Wembley in August to retain the Challenge Cup, before adding the League Leaders' Shield in much more dramatic circumstances seven days ago...
Superb Hall try wins shield for Leeds
Ryan Hall's last-minute try earned Leeds a narrow victory at Huddersfield, which confirmed top spot in the table. No wonder he looked so pleased.
Image source, SWPIX.COMLeeds Rhinos v St Helens (20:00 BST)
It's been nine years since a team won rugby league's domestic treble.
Leeds Rhinos are two thirds of the way there...
Image source, SWPIX.COM
Image source, SWPIX.COM