Brett Delaney says Leeds Rhinos are targeting the treble

Leeds forward Brett Delaney says the Rhinos' trophy hunt has only just begun after they retained the Challenge Cup in style with a record 50-0 rout of Hull KR.

England winger Tom Briscoe became the first player to score five tries in a Cup final as the Super League leaders cruised to the biggest win in the competition's history, on the day rugby league celebrated its 120th birthday in front of an 80,140 crowd at Wembley.

As the party began, Delaney revealed the players have already started to turn their thoughts towards completing a rare hat-trick of Challenge Cup, Super League leaders' shield and Grand Final success.

Reigning champions St Helens, who were the last team to do the treble in 2006, are the next opponents for Leeds in the Super 8s at Headingley on Friday, a match which will give Brian McDermott's men the chance to atone for a 13-12 defeat in last year's corresponding fixture.

The Rhinos lost all four games after their 23-10 win over Castleford at Wembley to finish sixth in the table and crash out of the play-offs at the first hurdle.

Delaney, who became the first Australian to play in five Challenge Cup finals, says there is a determination to avoid a repeat of that anti-climactic finish to the season

"We set a goal at the start of the season to win all three trophies and that's one of three," said Delaney, who scored the first of Leeds' nine tries just six minutes into the contest against Hull KR.

"We had a game plan and we stuck to it quite well. It was good to score my first try at Wembley.

"It's just pleasing. There's a few blokes in there who are retiring at the end of the year so it was good to send them off the way we want to.

"But the job's not done yet. We're back in next Friday and we've got to kick on. Last year our form dropped and we don't want to do that again.

"There's a big emphasis on how we finish the season. There's two more trophies to go and we want to win them too."