Sunday night’s matchup between the Kansas City Chiefs and Detroit Lions ended in fireworks, but not because of anything that happened on the field. The Chiefs were celebrating a dominant 30-17 win that got them back to .500 when quarterback Patrick Mahomes reached out his hand as Lions safety Brian Branch walked by. Branch ignored Mahomes’ gesture, and when he was greeted by the same gesture from Chiefs receiver Juju Smith-Schuster, the 23-year-old defensive back lost his cool and clocked the