DAI Young has praised his Wasps players after they booked their place in the last eight of the Amlin Challenge Cup at the weekend, but has warned them they need to be more accurate in the knock-out stages.

Wasps won 26-13 in Bayonne on Saturday evening to move seven points clear at the of Pool Four with just one match left – against winless Viadanna on Sunday.

Charlie Davies, Joe Launchbury and Tom Varndell all crossed the whitewash in the victory that continued their 100 per cent record in the competition this season.

Young said: “They did everything they could to win that game.

“They put their best team out and they certainly wanted to get something from the game so it was an excellent performance.

“They were a very physical side, especially up front and I thought that we matched that and quite often had the better of them so that was very pleasing.”

Andy Goode slotted three first half penalties to two from Bayonne to give his side the edge, before Davies went over to make it 14-6 at the interval.

Goode might have stretched the lead with two further penalties after the break, but both were pulled wide and those misses looked costly as the hosts cut the gap to 14-13 with a converted score.

Goode was then again off target, before Launchbury went over to ease the nerves.

Varndell’s score in the final ten minutes, after excellent work from Joe Simpson, completed a fine night’s work.

Young said: “We won that game twice, having put ourselves under a lot of pressure and allowing them to get back into it.

“We have to be a little bit more accurate, a little bit more clinical in order to not put pressure on ourselves and allow sides to get a foothold in the game.”

Wasps host Viadana at Adams Park on Sunday, 2pm