GIANTS coach Jon Sharp is calling on his players to prove their big pre-season win over Castleford was no fluke.

Sharp sends his side into action at Leeds on Sunday (3.00) with last Friday's stunning 36-0 victory over the Tigers still fresh in their minds.

The weekend trip to Headingley for Francis Cummins' testimonial clash is guaranteed to be a far harder test.

Rhinos boss Tony Smith has revealed he will be fielding his strongest possible squad against his former club.

Sharp has also named a full-strength side for the Giants' final Super League warm-up game, and is desperate to see his players rise to the occasion.

"The win against Castleford showed that we have the potential to be a decent team," said Sharp.

"But it's vital we back that up with another solid team performance at Leeds on Sunday.

"Consistency in a side is a very important quality to possess, and I'm determined to make the Giants a consistent side.

"A big failing of the side last year was that they would produce an excellent display and gain a good win one week, then the next fall down badly.

"That seemed particularly the case when it came to the other mid-table teams in the competition.

"On far too many occasions, they seemed unable to produce good back-to-back performances and, as a result, let games they should have won slip away.

"I want that to stop, and the way to do that is becoming a consistent side.

"That's why I expect my players to go to Leeds on Sunday and perform at least as well as they did against Castleford last Friday.

"If they don't I'll be a little disappointed, particularly as the boys know this weekend is the chance to stake a claim for a spot in our opening Super League game.

" So, that's a lot to play for at Headingley."

Sharp has, however, made positional changes to the side that ripped the Tigers apart.

That's partly to accommodate the return of fit-again hooker Darren Turner.

The 30-year-old takes his place in a pack that is much changed from that which started against Castleford a week ago.

There's an entirely new front row, with Turner and props Jim Gannon and Mick Slicker taking over from Ben Roarty, Sean Penkywicz and Darren Fleary.

These three are, however, still guaranteed game time against the Rhinos.

Roarty, who was magnificent up front a week ago, moves back into the second row to partner fellow countryman and new recruit Chris Nero, while Penkywicz and Fleary are both on the bench.

The backs, however, remain unchanged.

"I've never been one of those coaches who believes you should never change a winning side," said Sharp.

"It's always been my intention to field the line-up I feel is the most capable to beat the opposition.

"A way of doing that is trying out as many different combinations as possible to discover which are the most effective.

"That's what I intend doing on Sunday.

"I was pleased with a lot of the work of the forwards during the Cas game, both those who started the game and those who came off the bench.

"I thought Jim Gannon and Mick Slicker both did magnificently when they came on, and now's their chance to impress me from the start.

"I'm also keen to see how Ben Roarty and Chris Nero work together as a second-row partnership. I'm expecting them to do well."

Admission on Sunday is £10 adults, £5 concessions.

Leeds Rhinos: Connolly; Bai or Calderwood, Walker, Senior, Cummins; McGuire, Dunemann; Bailey, Diskin, McDermott, Furner, Poching, Sinfield. Subs: Burrow, McDonald, Ward, Mckenna, Jones-Buchanan.

Huddersfield Giants: Reilly; O'Hare, Donlan, Bailey, St Hilaire; Gene, March; Gannon, Turner, Slicker, Nero, Roarty, Costin. Subs (from): Penkywicz, Fleary, Smith, Jones, Crabtree, Cooper.

Referee: Ben Thaler (Wakefield).