Hirayama, a flyhalf in the 15-a-side game, has played for Canada at the last two World Cups, including the 2015 event in Britain.
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Goalkicking is one part of his game. Pictured at the 2015 Rugby World Cup, he has landed 274 conversions in sevens matches.
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Hirayama evades Mihai Macovei of Romania during Canada's 17-15 defeat at the 2015 Rugby World Cup.
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With rugby sevens making its Olympic debut at Rio 2016, Hirayama's focus has been on the shortened format of the game in the past two years.
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The Canadian men had their Olympic funding cut after failing to qualify for the Brazilian tournament. The country's women, by contrast, won a bronze medal.