Photo: Tyreek Hill, Noah Lyles (Instagram) Miami Dolphins wide receiver Tyreek Hill has officially challenged U.S. Olympic sprinter Noah Lyles to a race. Hill wants to race Lyles in a 50-yard dash and made it clear on social media that he's serious, telling Lyles to "sign the contract." This all started after former NFL stars Shannon Sharpe and Chad Johnson mentioned Hill's speed, suggesting he could beat Lyles. Lyles responded by saying Hill was just seeking attention and not truly committed to racing. He pointed out that if Hill was serious, he would have already competed in big races, like D.K. Metcalf did. Lyles said he would consider racing Hill if there was a formal agreement in place. Hill seems to have taken that to heart and is now pushing for the race to happen. Photo: Tyreek Hill (Instagram) The tension between the two athletes began when Hill appeared on the "Up and Adams" show and made comments about Lyles ' performance in the 200-meter d...