England and Scotland were among a host of big names to miss out on the Dubai Sevens quarter-finals after a series of shock results.
Ben Ryan's England beat Samoa 19-17 but slipped into the Bowl competition after losing their final Pool C game 22-21 to Portugal. They will face Argentina on Saturday and must do so without Tom Mitchell, who broke a leg against Samoa.
Ryan said: "We can't blame anyone else. In the first half Portugal got too many points that we gave them and we should have been more clinical. Now we've got to show a bit of resilience and spirit. None of us wants to be in the Bowl. We need to get momentum and show we've got a bit of character."
Phil Greening's Scotland were beaten by Kenya, Fiji and Spain and face a Bowl quarter-final against Australia, leaving Wales as Britain's only representatives in the quarter-finals proper.
Paul John's team lost 14-7 to New Zealand but beat Argentina by the same scoreline and hammered Russia 22-5, thanks to a Rhys Shellard hat-trick, to set up a last-eight clash with Samoa.
Portugal and Fiji advanced to face New Zealand and France respectively, while the remaining quarter-final is between Canada and Kenya.