Patrick Mahomes shines on his surgically repaired knee in Chiefs' season-opening rout of Broncos

Patrick Mahomes’ surgically repaired left knee felt so good Monday night that he even ran for a touchdown against the Broncos.Twice.After his first scramble to the end zone got called back by a penalty, the Chiefs quarterback took off again on the very next play, sprinting through the teeth of one of the NFL's best defenses for a 15-yard touchdown run. And that set the tone for the rest of the night, as Kansas City whipped the reigning AFC West champions 31-10.Mahomes had 184 yards and two touchdowns passing to go with what matched his longest TD run in a regular-season game.He certainly didn't appear to be slowed by the brace he wore on his left knee.It was nine months ago to the day that Mahomes tore two ligaments in the knee when he was spun to the ground in front of the Chiefs bench in the waning minutes of a loss to the Chargers. The Chiefs already were on their way toward being eliminated from postseason contention, but the injury to their biggest star sent them to a nadir few co