A nationwide Federal Aviation Administration ground stop disrupted the weekend sports schedule and caused multiple college football programs to change travel plans.

The disruption delayed kickoffs and prompted the NFL to reassign officials ahead of Sunday’s games.

The flight restrictions, which began late afternoon on Friday because of a telecommunications problem affecting air traffic control centers nationwide, left several teams scrambling to reach their destinations before Saturday’s scheduled matchups, according to ESPN.

The ground stop was lifted at about 8:15 p.m. ET, but the disruption continued to impact travel plans.

One of the most significant scheduling changes involved No. 19 Ole Miss and Oklahoma. The Saturday matchup in Norman was postponed until Sunday at 1 p.m. ET after Ole Miss was unable to travel as planned. The Rebels were ultimately unable to reach Oklahoma in time for the original kickoff.

The decision drew criticism from Oklahoma athletic director Roger Denny, who said the university strongly objected to moving the game to Sunday.

Several other college football games also had their kickoff times adjusted.

Auburn’s matchup against Mississippi State was pushed back more than four hours, from noon to 4:15 p.m. ET, after the Tigers switched to bus transportation to reach Starkville.

Utah’s game against Arizona was moved to a 10:30 p.m. ET kickoff, three hours later than originally scheduled, while Arizona State’s matchup against UCF was pushed back from 2:30 p.m. to 5:30 p.m. ET.

Washington’s game against Michigan State was also delayed, with kickoff moved to 5:30 p.m. ET after the Huskies experienced travel complications.

Other affected matchups included Baylor at BYU, which was moved to 7 p.m. ET, Tulane at Rice, rescheduled for 4:30 p.m. ET, and Florida Atlantic at Tulsa, moved to 7:15 p.m. ET.

The disruption also extended into professional sports, affecting the NFL’s preparations for Week 10.

The league reassigned three officials to different officiating positions for Sunday’s games after travel complications threatened their ability to reach their originally scheduled assignments.

Barry Anderson was assigned to referee the Jacksonville Jaguars-Tennessee Titans game, while Duane Heydt was moved to the referee position for the Carolina Panthers-New Orleans Saints matchup.

Don Willard was also assigned to referee Sunday’s Miami Dolphins-Indianapolis Colts game before traveling to Cincinnati to officiate the Bengals-Pittsburgh Steelers matchup later that evening.

The NFL said each of its 17 officiating crews has a designated backup referee who trains throughout the year to fill the position when needed.