HEAD coach Simon Amor admits he is facing some major selection headaches as he prepares to whittle his Team GB sevens squad down to 12.

The British squad have been together since May and have been splitting into two teams for tournaments on the Rugby Europe Grand Prix Sevens Series.

The boss, along with deputy and Wales coach Gareth Williams, will officially name the final squad next Tuesday with Brynmawr's Sam Cross along with compatriots Luke Treharne, Luke Morgan, James Davies and Cory Allen hoping to get the nod.

After previously playing in the Moscow tournament and Sevens and the City at Saracens' Allianz Park, Team GB impressed in Exeter last weekend.

GB Royals won the Cup at Sandy Park on Sunday after coming from 12-0 down to beat reigning champions France 33-17 in the final while GB Lions, who lost 7-5 to Russia in the quarter-finals, won the Plate by beating Germany.

Amor, who takes his charges to Poland for another competition this weekend, says their exploits have provided plenty of food for thought.

"This is a group of guys that pretty much met six weeks ago and they have been absolutely outstanding," he said.

"They have fought and fought and fought. I am proud of them and I am proud of the staff that have come together very quickly.

"To win a trophy here is a credit to everyone that has been involved in the GB programme, I am really chuffed.

"We have some absolutely unbelievable players, there is so much talent to pick from and now we have to work out which one goes well with the other.

"They have given us some massive selection headaches and that is exactly the place we wanted to be in, so it is going to be a tough night with myself and Gareth Williams talking this through."

Treharne has done his chances no end of good by showing the same sort of form in a GB jersey as he has produced in the red of Wales in the HSBC Sevens World Series.

The 23-year-old was named as player of the tournament in Exeter and was thrilled to lead the Royals to glory by beating the French in the final.

"It is an amazing feeling," said Treharne. "It has been a tough six weeks in camp with all the boys pushing each other.

"It was a great way to test ourselves with a 20-minute final and to come away as winners is incredible.

"France were outstanding and they really ran us around in the first-half (GB trailed 17-14 before scoring 19 unanswered points). We showed incredible courage and it showed the training has been paying off.

"The Lions won the plate final as well so they also produced an excellent effort. Hopefully we have given the selectors plenty of headaches."