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William warms up ahead of his international water polo debut for Scotland in the Celtic Nation's cup.

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The St Andrew's University water polo captain practises in the pool at the Welsh Institute of Sport, Cardiff.

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William and team-mates sporting their squad hats as they cheer on their side in the water.

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The prince is said to be an attacking player.

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Waiting at the water's edge to take a place in the team.

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The prince was vocal in his support for his team-mates.