died “peacefully in his sleep” on Feb. 1 at the age of 76, according to a statement his family released to Deadline.He died as a result of atherosclerotic cardiovascular disease, according to his death certificate.A previously released teaser for the FanDuel ad showed Weathers as an Apollo Creed-type coach helping NFL legend Gronkowski prepare for FanDuel’s “Kick of Destiny 2″ event.In another 30-second FanDuel tease, a distraught Gronk walks alone in the desert until Weathers pulls up on a motorcycle and urges him to continue practicing his kick.“And this time, you won’t miss,” Weathers tells him.