The Chiefs are now scheduled to host the Patriots at 7:05 p.m. EDT Monday in Kansas City.
The game was scheduled for 1 p.m. EDT Sunday in Kansas City, Mo., before it was postponed on Saturday after Patriots starting quarterback Cam Newton and Chiefs practice squad quarterback Jordan Ta'amu each tested positive for COVID-19.
"Further testing of players and personnel on both teams returned no new positives from Saturday and Sunday testing," the NFL said in a news release.
"The clubs also worked closely with the NFL and [players union] and infectious disease experts to conduct contact tracing and post-COVID exposure protocols are now in effect for both teams."
Newton and Ta'amu have been placed on the reserve/COVID list are an ineligible for the Week 4 game. Brian Hoyer is expected to start at quarterback for the Patriots on Monday in place of Newton.
The Chiefs and Patriots game will air on CBS. The Falcons and Packers game will air on ESPN.