 The highlight of Vlasic's season was a matchup on December 8 against his old team, the Chargers.After replacing DeBerg in the second half with the Chiefs down by 14 points, Vlasic completed 12 of 18 passes for 150 yards and a touchdown as the Chiefs beat the Chargers in overtime, 20–17, and giving the Chiefs a playoff berth in the process.As a result of this performance, Vlasic was given the start for next week's game against the San Francisco 49ers.