Ryan Dominic Bertrand (born 5 August 1989) is an English professional footballer who plays as a left back for Premier League club Southampton and the England national team.Born in Southwark, London, Bertrand began his youth career at Gillingham, before signing for Chelsea in July 2005. He graduated from Chelsea's youth system and was sent on loan to various clubs between 2006 and 2010. He made his full debut for Chelsea on 20 April 2011, six years after joining them, in a fixture against Birmingham City. In the 2011–12 season, Bertrand signed a new four-year contract with Chelsea and was made understudy to Ashley Cole, whom he described a "fantastic role model." On 19 May 2012, Bertrand became the first player to make his Champions League debut in the final, starting in an unfamiliar left wing role in front of Cole; Chelsea beat Bayern Munich 4–3 on penalties. He has honours with Chelsea, including an FA Cup and UEFA Champions League titles. Wikipedia
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