The full-back says he has learnt plenty from playing with Craig Bellamy and Ryan Giggs at London 2012 and is looking forward to the new season
The left-back has admitted that despite the disappointment of a penalty shoot-out elimination to South Korea the experience of international football and working with the likes of Ryan Giggs can only help his own development.
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"It's been a very good summer, playing in the Olympics was an amazing experience and now I'm looking forward to the season, which starts very soon," Bertrand told the club's official website.
"It was fantastic to learn from players who have had such good careers like Ryan Giggs and Craig Bellamy, it really was a massive learning experience and the opportunity to experience another international setup after England Under 21s.
"Being at a home Olympics does give you that added incentive and to have so much support from all the fans around the country was fantastic.'
"I had my holidays after the season where it was good to unwind but now it's good to get back to Chelsea."
With Chelsea due to kick-off their Premier League campaign away to Wigan on 19 August, Bertrand has insisted he is fully fit and cannot wait for the season to begin.
'It's nice to be back, and training was good. You can see the boys have been working hard on the tour, so things are looking bright for the beginning of the season," he added.
"I managed to play all the games for Team GB bar one so that was good fitness-wise and I'm raring to go.'