100 mins: The final hooter blows and Leeds are through to the Challenge Cup final on 26 April.

99 mins: Leeds skipper Sinfield finds Danny McGuire out wide and the young stand-off shows great composure to touch down in the corner. Sinfield puts the icing on the cake with a fine kick. St Helens 26-33 Leeds

97 mins: A superb break by Sean Long brings the McAlpine stadium to its feet, but the Leeds defence stands firm.

94 mins: Dunemann tries a grubber kick but it is well read by Wellens who relieves the pressure on the St Helens tryline.

91 mins: Paul Sculthorpe gets the second period of extra-time underway.

90 mins: Strong running from McDermott and Walker put Leeds in a great position, allowing Sinfield to go for the drop-goal and edge the Rhinos into the lead on the brink of half-time.
St Helens 26-27 Leeds

85 mins: There is nothing to separate these sides - both teams have made 163 successful tackles during the match.

81 mins: St Helens' Darren Albert thinks he has scored within 45 seconds of the restart, but the referee rules that Albert was offside.

80 mins: The referee blows for full-time, but with the scores level, the game will go into extra-time.

79 mins: Leeds are handed a second set of six because of an offside and Danny McGuire shows great strength to touch down in the corner. Under huge pressure, Sinfield kicks magnificently form a very difficult angle to send the game into extra-time.
St Helens 26-26 Leeds

76 mins: Sean Long finds Darren Smith with a superb ball out wide and Smith powers through to put St Helens just minutes away from the Millennium Stadium. But Sculthorpe misses the kick to give Leeds a chance.
St Helens 26-20 Leeds

72 mins: Connolly shows either great composure - or enjoys a large slice of luck - to kick the ball out to touch after an awkward bounce. Saint's Sean Long was just inches away from making contact with the ball to snatch a try for Saints.

68 mins: Leeds are penalised for an off-side and Sculthorpe makes it five kicks out of five to put Saints back in front.
St Helens 22-20 Leeds

66 mins: Neither team is able to make a break at the moment, with tackling a priority for both sides.

63 mins: Leeds won't be able to call on Matt Adamson again this match - the second rower is receiving treatment for a suspected fractured cheek bone.

60 mins: Danny Ward comes close to touching down for Leeds, but the big prop loses control of the ball at the vital moment.

58 mins: Saints' Darren Smith is penalised for holding Gary Connolly. Sinfield shrugs off his previous two misses to kick Leeds back on level terms.
St Helens 20-20 Leeds

55 mins: Saints have now scored 14 points without reply. Leeds have lost all their first-half momentum and have failed to get on the scoreboard for 30 mins.

51 mins: Man of Steel Paul Sculthorpe scores a superb try, showing great strength and flexibility to touch down under a pile of Leeds bodies, then puts Saints in front with the conversion.
St Helens 20-18 Leeds

48 mins: Kevin Sinfield is penalised for impeding Sean Long. Sculthorpe decides to go for the two points, cutting Leeds' lead to just four points.
St Helens 14-18 Leeds

45 mins: Saints have enjoyed 91% territorial advantage this half as Ian Millward's men seek to reduce the six-point deficit.

42 mins: A great set six from Saints and a dangerous kick to relieve the pressure. John Stankevitch is only denied by a try-saving tackle from Gary Connolly.

41 mins: Saints' Paul Sculthorpe gets the second half underway.

40 mins: The referee blows for half-time.

39 mins: Leeds are made to pay for Sinfield's poor kick straight into touch. St Helens react very quickly, catching Leeds off guard and putting Paul Newlove through for the 130th touchdown of his Saints career. Paul Sculthorpe adds the extras from a difficult angle.
St Helens 12-18 Leeds

36 mins: Leeds are awarded a penalty for an offside against Saints' Barry Ward. But Sinfield fails to extend Leeds' lead with his second missed kick of the afternoon.

34 mins: A groggy Chris McKenna receives treatment on the sidelines after an accidental collision with Paul Sculthorpe.

29 mins: Dave Furner and the Leeds forwards are making a series of ferocious tackles, frustrating St Helens at every turn.

25 mins: A clever grubber kick by Chev Walker allows Francis Cummins to add another four points for Leeds. Sinfield misses the conversion from a difficult angle.
St Helens 6-18 Leeds

22 mins: Loose play from Jason Hooper gifts Leeds possession as Saints begin to show signs of pressure.

18 mins: Dunemann shows great awareness to pick out Calderwood out wide. The winger shows terrific pace to grab his second try of the match. Sinfield's conversion stretches the Rhinos' lead.
St Helens 6-14 Leeds

15 mins: Paul Calderwood puts Leeds back in front after capitalising on a mistake by Paul Wellens. Sinfield chips the ball into the corner, but Wellens miss-judges the bounce and slips on the recently-watered turf, allowing Calderwood to sneak over. Sinfield adds the extras.
St Helens 6-8 Leeds

13 mins: Paul Newlove is denied a second try for the Saints when the referee spots a forward pass in the build up.

11 mins: Sculthorpe is warned by the referee for an apparent punch at Keith Senior.

9 mins: Saints are playing a good kick and chase game, attacking Leeds through the middle rather than switching the ball out to the wings.

6 mins: Darren Smith sneaks over the line to score the first try of the game following some terrific play by the Saints. Paul Sculthorpe kicks the conversion.
St Helens 6-2 Leeds

2 mins: Leeds win a penalty against Mick Higham. Kevin Sinfield successfully kicks for goal to give Leeds a confidence-boosting early lead.
St Helens 0-2 Leeds

1 min: Leeds kick off deep and pin Saints back, forcing the Saints to kick early.

Teams:

St Helens: Stewart, Albert, Gleeson, Smith, Newlove, Sculthorpe, Wellens, Britt, Higham, Stankevitch, Joynt, Jonkers, Hooper. Replacements: Long, Bennett, Edmondson, Ward.

Leeds: Connolly, Calderwood, McKenna, Senior, Cummins, Sinfield, Dunemann, Bailey, Diskin, McDermott, Walker, Adamson, Furner. Replacements: Poching, McGuire, Ward, McDonald.