Brown, Tar Heels open camp with clear strength: running back

North Carolina running back Michael Carter (8) runs a drill during NCAA college football practice Friday, Aug. 2, 2019 in Chapel Hill, N.C. (AP Photo/Gerry Broome)

North Carolina head coach Mack Brown watches players during NCAA college football practice Friday, Aug. 2, 2019 in Chapel Hill, N.C. (AP Photo/Gerry Broome)

North Carolina running back Antonio Williams (24) runs the ball during NCAA college football practice Friday, Aug. 2, 2019 in Chapel Hill, N.C. (AP Photo/Gerry Broome)