The 23-year-old has signed a new five-year contract with the Champions League champions.
Bertrand made his Champions League debut in the final itself in May.
Reports suggest that Bertrand has earned a pay rise to £35,000-a-week.
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Summer 2016 is set to be a very exciting time for football fans, as this is when the long awaited Euro 2016 tournament kicks off.
Since Guus Hiddink arrived at the helm, Chelsea have improved considerably after a tricky start to the campaign.