Warrington Wolves 38 Hull Kingston Rovers 10.

WARRINGTON Wolves are through to the fifth round of the Carnegie Challenge Cup.

Wolves, without the services of injured Lee Briers, Adrian Morley, Paul Johnson and Simon Grix, gritted their teeth and slowly wore down Hull Kingston Rovers at The Halliwell Jones Stadium today, running away with the game in the final quarter.

And they did so despite losing props Paul Wood and Rob Parker with injuries that prevented them from taking any further part in the game.

Wolves went ahead in the 10th minute after an outstanding Stuart Reardon counter-attack left Rovers' defence in disarray, allowing Jon Clarke, Wood and Vinnie Anderson to fire the ball out wide for left centre Brent Grose to race in for his first try of the season.

Three minutes later the Robins were back on level terms when scrum half Clarke's pass was intercepted by substitute prop David Tangata-Toa, who sped home unopposed from 35 metres.

It was 25 minutes before the next try, which came from Reardon after a wild pass from prop Paul Rauhihi was kicked ahead twice by Clarke.

Bridge added the extras to leave Wolves 10-4 ahead at the break.

But they were going to have to play the second half with one man down with Parker picking up a hand injury in the 34th minute.

That became worse in the 43rd minute when in-form Wood had to be carried off the field with a leg injury.

Wolves did not let the setbacks spoil their afternoon, though.

Seven minutes into the second half a superb round-the-man offload by Rauhihi allowed fellow Kiwi international Vinnie Anderson to scatter two defenders and crash over.

Chris Leikvoll had a rare try controversially ruled out by the video refree in the 52nd minute but there was no stopping stand off Bridge when he took on the line and used Martin Gleeson as a foil three minutes later, putting Wolves in command at 22-4.

Ben Westwood was placed on report for an incident that led to Rovers loose forward Tommy Gallagher leaving the field in a groggy state.

Successive penalties gave KR the platform for substitute hooker Kirk Netherton to cross from close range, leaving Rovers just two converted tries adrift with 17 minutes remaining.

Clarke looked to be heading to the sticks for the decider but was pulled up by Richard Silverwood for a forward pass from Michael Sullivan.

Another nine minutes passed before Grose darted over from dummy half to seal the win.

Wolves crossed twice more during five minutes of injury time, with Anderson bagging his second after a Grose burst and Richie Barnett follow-up.

Rauhihi finished things off when he powered over to finish off good spadework by Bridge.