Here are the rules for the CFP for this year.
The College Football Playoff Management Committee
announced Wednesday that semifinal games will not be made up if a team does not have enough players available due to COVID-19 cases. If a team is unable to field enough players, it would forfeit the game and its opponent would advance to the College Football Playoff National Championship.
If both teams in a semifinal are unable to play, the game will be declared a no contest and the winner of the other semifinal will be declared the national champion. If three of the four CFP semifinal teams are left unavailable due to COVID-19 issues, the lone remaining squad would be deemed national champion.
"If one team is able to play and the other is not and the game cannot be rescheduled or is rescheduled and cannot be played, then the team unable to play shall forfeit the game and the other team shall be declared CFP National Champion," according to the official CFP policy.
Finally, should national title game fail to be rescheduled prior to Jan. 15, then the championship will be declared vacant.