The Kansas City Chiefs improved to 5-1 with a 26-17 victory over the AFC East-leading Buffalo Bills.
With the win, the Chiefs now sit 1.5 games above the Las Vegas Raiders for first place in the AFC West.
This encounter was originally scheduled for Oct. 15 but moved to Monday night because of fallout from positive COVID-19 tests across the league.
This was the first time Patrick Mahomes faced off against the Bills since Kansas City worked out a deal with Buffalo to trade up to the No. 10 pick in the 2017 NFL draft.