AdvertisementFor Olympic Committee, Marketing Is No GameJuly 18, 2012Elizabeth BlairfacebookEmailOlympic swimmer Michael Phelps signed an endorsement deal with Subway in 2008, but because Subway is not an Olympic sponsor, Phelps isn't allowed to appear in a Subway ad from July 18 to Aug. 15 2012. (via SubwayEatFresh365/YouTube)