Watch Now: Five-star cornerback Tony Grimes just announced his commitment to North Carolina (0:52)

North Carolina commit Tony Grimes, the top-ranked cornerback in the Class of 2021, will reclassify to the Class of 2020 and enroll in school on Aug. 1. Grimes' father, Deon Glover, told 247Sports that the uncertainty of high school football this fall has expedited the process.

Grimes, a 6-foot, 180-pounder from Princess Anne High School in Virginia Beach, Virginia, was the No. 7 overall prospect in the Class of 2021 prior to his expected reclassification. The 247Sports Composite has Grimes with a 0.9953 point rating. That would put him in a tie for the No. 9 overall prospect in the Class of 2020.

"Our backs are against the wall. He doesn't want to wait around and blow a whole season waiting around to see what's going to happen with high school sports," Glover said. "He's going to go ahead and move forward."

Grimes committed to North Carolina over Georgia, Texas A&M, Ohio State and Alabama on CBS Sports HQ on June 30

"Mack Brown is an unbelievable head coach," Grimes told CBS Sports HQ when he committed. "He came into UNC with players that he didn't have, and he turned the football program around with players that he didn't recruit. Now he has the players he recruited. I trust him, my family trusts him and we're going to win the natty."

Brian Dohn, national recruiting analyst for 247Sports, compared Grimes to Kyle Fuller of the Chicago Bears and provided this scouting report on his future at the collegiate level.

"Wide shoulders and good length. Frame of safety with cornerback skills. Instinctual player with high skill level. Physical and smooth. Tracks ball well and has great timing. Opens hips and runs with ease. Long strider who can cover on long crossing routes and deep throws. Strong upper body helps re-route receivers with jams. Comfortable in backpedal and explodes forward out of it. Good tackler and asset in run defense. High IQ on and off field. Leadership qualities. Must get stronger in lower body. Ready to play at elite program when he steps on campus. First round NFL draft pick potential."

Grimes was the highest-ranked recruit in North Carolina's 2021 class, and now holds the same title in the 2020 class. He is just the second cornerback prospect to sign with the Tar Heels and only one who will be on campus this fall. Jayden Chalmers, a three-star prospect and the only other cornerback signee, is headed to prep school.