The Southeastern Conference will play only league games in 2020, a decision that pushes major college football closer to a siloed regular season in which none of the power conferences cross paths.

The SEC’s university presidents agreed on a 10-game schedule that eliminates all nonconference opponents and is set to begin Sept. 26, the person said. The SEC championship game, originally scheduled for Dec. 5, will be pushed back to Dec. 19.

The Big Ten and Pac-12 announced their intentions to play only conference games earlier this month, but the Atlantic Coast Conference this week announced a reworked 11-game schedule that left room for one non-conference game.

The ACC wanted to allow four of its schools to maintain in-state rivalry games with SEC schools, but now Georgia-Georgia Tech, Florida-Florida State, Clemson-South Carolina and Kentucky-Louisville have been canceled.

The Big Ten and Pac-12 have yet to reveal their schedules but both could come as soon as Friday. Big 12 officials were holding out hope its 10 members would be able to play nonconference games, but options are dwindling. The SEC’s decision cancels LSU’s home game against Texas and Tennessee’s scheduled trip to Oklahoma in September.