Richards' perfectly judged kick-off bounced once in the in-goal area and then out of play, putting Warrington on the ropes from the opening seconds.

BBC: Warrington 16-8 Wigan

Algeria, who qualified for the finals via a play-off victory over Egypt, showed plenty of promise in their build-up play, only for most of their attacks to fizzle out on the edge of the penalty area.

BBC: USA 1-0 Algeria