Look at his ankles, he is wearing an accessory that avoids any future sprains…
EXO-L is a company that is developing this accessory for your shoes that guarantee to avoid ankles sprains, take a look at the video:
According to their website https://www.exo-l.com/, the external ankle ligament acts as a safety belt that protects you at the moment you are about to spain your ankle. The EXO-L doesn’t affect your freedom of movement, and it allows you to exercise longer and reach higher.