30 January 1990 |
Villeneuve-sur-Lot, Aquitaine, France
|Height||5 ft 10 in (1.78 m)|
|Weight||13 st 1 lb (83 kg)|
As of 14 December 2017
He was a trainee at the Dragons since the start of the 2009 season, and signed part-time in July 2009. In 2010 he signed his first professional contract. He was handed the number 16 jersey for 2010.
He represented France in the 2010 European Cup.
He was named in the French squad for the 2013 Rugby League World Cup.
He was named in the France 23 man squad for the 2014 European Championship against Wales, Ireland and Scotland.
After missing France's first match of the 2015 European Cup and test-match with England due to injury, William returned to play for France in their European Cup match against Wales.
Barthau played in France's lone international fixture of 2016, an end of year test match against England in Avignon.
- Hadfield, Dave (13 June 2009). "England play new generation game". London: independent.co.uk. Retrieved 2010-01-14.
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