KANSAS CITY, Mo. (AP) — Patrick Mahomes and the Kansas City Chiefs knew they were going to have a fight on their hands when the Detroit Lions, riding a four-game winning streak and a whole bunch of momentum, rolled into Arrowhead Stadium on Sunday night. They probably didn’t expect their dominant performance to end with an actual fistfight . Mahomes threw for 257 yards and three touchdowns, scrambled for another score, and led Kansas City to a 30-17 victory that was so comprehensive that Lions