DENVER – The Denver Broncos sent rookie Tua Tagovailoa tottering to the sideline, benched early in the fourth quarter after his worst game as a pro, one that included six sacks and just 83 yards passing.For doing such a good job, they nearly paid a big price.Justin Simmons intercepted Ryan Fitzpatrick’s pass to DeVante Parker in the end zone with 63 seconds left Sunday, sealing the Broncos’ gritty 20-13 win over the Miami Dolphins.“I was happy as hell,” said Melvin Gordon, who rushed for two touchdowns but fumbled on the way in for his third score, giving the Dolphins (6-4) one last chance.The Broncos (4-6) snapped Miami's five-game winning streak and kept Tagovailoa from joining Ben Roethlisberger as the only rookie QBs in the past 40.