face off for the biggest prize in the game.

Since 2008 the two competition heavyweights have fought out two epic deciders with the scoreboard currently at one-all.

And now only a fortnight from the grand final, reigning premiers Yenda and the runaway competition leaders for much of 2010 Waratahs square-off in a blockbuster major semi-final at Exies Oval.

"All through the year the talk has always generally been around Yenda and Waratahs (in the grand final) so it's looking like it could happen again," Waratahs captain Kodie Charles said.

"Waratahs are a great team, they've been the best side in Group 20 this and a lot of people know that but it's going to come down to who wants it more on the day and whoever applies themselves better will get the rewards," Yenda captain-coach Andrew Lavaka said.

Yenda's Kolo Lomu is still only rated a 50-50 chance of playing after fracturing his hand two weeks ago, but the Blueheelers have found a ready-made replacement in former winger Niu George, with the speedster bagging a hat-trick last weekend.

"Obviously Niu hasn't had the chances to get the ball in his hands and when he has he's looked really relaxed, so getting him in the centres last week showed he's capable a lot more," Lavaka said.

The Blueheelers' pack dominated the Greens last weekend, with their physical presence blunting the Greens' attack across the park.

Charles expected Yenda to play the same card in the opening minutes on Sunday, but added early game fireworks would play right into his team's hands.

"I think they just intimidated Leeton, they wanted it more and they belted them from the kick-off and Leeton went off their game and they couldn't throw anything back," he said.

"They'll try and do the same to us no doubt about it, but the good thing for us is that there are guys that love that tough stuff early because it gets them into gear early."