Cardiff-born Sam Warburton has had a very successful season during 2006-2007. Warburton, a member of the 2006-2007 Blues Academy, was part of the Blues U20 squad that blazed a trail through the U20 Reebok Regional Championships to win the title. In January 2007, he was named Principality Premiership player of the month after several man-of-the-match performances for Glamorgan Wanderers against Bridgend, Bedwas and Maesteg.
In March 2007, Warburton was handed the Wales captain's armband by Justin Burnell against England U19 taking over from Josh. At the end of March 2007, Warburton was named captain of the Wales U19 squad for the 2007 IRB U19 World Championships. He led his team through a successful tournament in which they triumphed over Samoa and Argentina in the Pool stages to reach the semi-final against New Zealand. Though defeated in this match Wales U19 fought bravely against Australia U19 in the 3rd place play-off, narrowly losing but earning a well-deserved fourth place in the IRB U19 World Rankings.
On 18 January 2010 he was named in the 35 man Wales national Squad for the 2010 Six Nations tournament. Warburton captained Wales for the first time versus the Barbarians on 4 June 2011 at the age of 22 years becoming Wales’ second youngest captain after Gareth Edwards.
In August 2011 he was named as the Welsh Captain for the 2011 Rugby World Cup in New Zealand in the absence of the injured Matthew Rees. In the opening match of the tournament against South Africa, Warburton became the youngest ever World Cup captain.
Warburton retained the captaincy for the 2012 Six Nations. In the opening match against Ireland he went off injured at halftime with a dead leg, but Wales managed to win 23-21. Wales prevailed though the championship to claim the Grand Slam and Warburton was again Captain the following season as Wales defended their championship title.
On the 30 April 2013 Warburton was named as Captain for the 37-man squad for the 2013 British and Irish Lions tour to Australia that returned home victorious.