“We have climatic chambers, the temperature can go from – 30°C to + 40°C. We showed them to Teddy but they don’t fit his needs. So he did not test them. » Nils Guéguen is research and development manager of the Decathlon Sports Lab at the B’twin Village, in Lille. Located on the former Seita cigarette factory, this huge space is dedicated to cycling and sports. Given his morphology, cycling is not necessarily the favorite activity of the ten-time world judo champion, but he does it regularly as part of his physical preparation.