Watch: Alfie Barbeary scores a hattrick in Wasps' win

Alfie Barbeary's hattrick against Biarritz fires Wasps into the quarter-finals of the Challenge Cup.

Lee Blackett's side will face either Edinburgh or Bath in the final eight after claiming a 29-39 victory over Top 14 side Biarritz.

Alfie Barbeary bagged himself a hat-trick scoring twice in the first half and another in the final 10 minutes.

The 21-year-old scored Wasps' second try in the 14th minute after Jacob Umaga dotted down in the 11th minute. 

He ran a good supporting line off of Charlie Atkinson and received the offload to stroll through under the sticks.

Barbeary grabbed his second not too long after as he stepped inside after carrying off the back of a five-metre scrum dot down.

Dan Robson scored Wasps' fourth try to open up a 3-29 lead but Biarritz would have the final say of the half as Lucas Peyresblanques scored in the 28th minute. Half time: Biarritz 8-29 Wasps.

Mathieu Hirigoyen sliced Wasps' lead to just 14 points just two minutes into the second half with Steffon Armitage's try making it a seven point game with 20 minutes to play.

A Jimmy Gopperth penalty gave Wasps some breathing space with 18 minutes to go but Biarritz created a tense finish as Bastien Soury scored with 12 minutes left on the clock.

Barbeary ran a clever line to round off an excellent team attack and seal the result for the visitors completing his hattrick with five minutes to play.