While Olympians regularly endorse everything from sneakers to credit cards, Rule 40 of the Olympic Charter places a blackout period immediately before and during the games when competing athletes can’t appear in ads. Samsung is getting around that restriction ahead of the Winter Olympics in Beijing with a spot from Leo Burnett that casts actors as athletes.
https://www.adweek.com/brand-marketing/winter-olympians-express-their-passions-beyond-sports-in-samsungs-sleek-ad/