Dublin - The International Rugby Board (IRB) says only one player tested positive for doping during the World Cup in New Zealand.
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The player, whose name or team was undisclosed, has been provisionally suspended by the IRB until the outcome of a hearing.
The world governing body says the player tested positive for a banned painkiller following a match in the final round of the pool phase. His team failed to progress to the knockout stage.
Japan flyhalf Ryohei Yamanaka was banned for two years and Russia prop Evgeny Pronenko for six months for failing doping tests before the September 9-October 23 tournament, which was won by hosts New Zealand when they defeated France 8-7 in the final.
The IRB conducted a total of 216 urine and 76 blood samples during the tournament, an increase of 80 from the 2007 World Cup.