This is our last shot at Shield, admits Wolves' Morley

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Warrington captain Adrian Morley has admitted that his side will not catch Wigan at the top of Super League if they lose to them tonight.

The Wolves are Wigan's closest rivals for the League Leaders' Shield – four points behind going into the match at the DW Stadium. "If we want to finish top we're going to have to win," Morley said yesterday. "If we don't, six points is just too much to make up. We won't do it."

The Wolves go to Wigan with a clean bill of health following Tony Smith's recent policy of rotating key players. He rested Morley two weeks ago and last week left out Lee Briers and Ben Harrison. Both of them are fit for tonight's game – the first ever to be televised in 3D – along with Chris Hicks, the Australian winger who has shelved his retirement plans and signed on for another season.

That could hasten the departure from Warrington of Kevin Penny, who remains a target for Wakefield even though this season's registration deadline has passed.

Wakefield and Castleford, as well as contesting a possible play-off place on Sunday, will play for the Adam Watene Trophy – in memory of the Wildcats' player who died last year.

Tonight's other match sees Huddersfield, who are looking to get back on an even keel now that Nathan Brown has agreed to coach them for another year, go in search of their first victory at Leeds since 1959.

The Rhinos, who have Danny Buderus, Ali Lauitiiti and Kylie Leuluai back in their squad, are being linked with a shock move for Wigan's Iafeta Paleaaesina.

Widnes's sporting director, Terry O'Connor, is taking a more hands-on coaching role for Sunday's Northern Rail Cup final against Batley.

He will assist another former Wigan and Great Britain forward, Mick Cassidy, in the continuing absence of Paul Cullen, who is on compassionate leave because his wife is ill.