New Yorkshire Carnegie signing Alex Gray helped the GB Royals team to victory in their latest warm up tournament before the Rio Olympics.
Both the GB Royals and GB Lions claimed silverware at the Mitsubishi Motors Exeter 7s at Sandy Park at the weekend.
The GB Royals came from 12-0 down to beat fellow Olympians France 33-17 in the cup final while the GB Lions lifted the plate with a 31-19 victory over Germany.
Head Coach Simon Amor said: “I’m delighted with the courage the guys have shown, they came together as a group only six weeks ago and they have been absolutely outstanding.
“They have fought and fought and fought not just across this weekend but throughout the whole programme. I am proud of them and I am proud of the staff that have come together and made it all happen.
“To win the cup here is a credit to everyone that has been involved in the GB programme, I am really pleased.
“We have some absolutely unbelievable players, there is so much talent to pick from and now we need to work out which combinations work the best.
“They have given us some massive selection headaches and that is exactly the place we wanted to be in, Gareth Williams and I have some really tough decisions to make.”
The coaches will decide this week which 12 players will travel to Rio, and compete in the Olympics for Team GB, with the squad announcement made on Tuesday 19 July.
GB Sevens play in the final round of the Rugby Europe Sevens Series next weekend in Gdynia after experiencing a great atmosphere at their home tournament.