Dak Prescott leads the Cowboys to a 20-17 victory over the Chargers in the fourth quarter.

With a bye week approaching and having just played

 one of the worst games of his eight-year career the week before, 

Prescott knew going into Monday night's game against the Los Angeles Chargers

the Cowboys' chances of challenging for an NFC title.

Prescott threw for 272 yards and a touchdown

Dallas won 20-17 after mounting a late comeback.

The difference between 4-2 and 3-3 is significant,

"Winning was essential.