Chattanooga trailed 28-21 in overtime when Tyrell Price scored on a 5-yard run. On the conversion, the Mocs (2-0) went for two with Nunnelly taking the hand-off on a reverse play and throwing to a wide open Giberti in the endzone for the win.
Nick Tiano threw for 347 yards and two scores, both going to Nunnelly, who finished with 268 yards on 10 catches. Price ran for a pair of touchdowns.
Chattanooga had a chance to win it in regulation but Victor Ulmo missed a 34-yard field goal as time expired, sending the game into overtime tied at 21-all.
The Mocs led 21-14 at halftime but went scoreless in the second half.
Jordan Black threw for 90 yards and a touchdown and ran for two more scores for the Bulldogs (0-2).
UCF VS NAVY
MIZ VS VAN
South Carolina takes 14-0 lead on TD pass
Jake Bentley finds a wide-open Kyle Markway for a 19-yard TD pass.
Vanderbilt breaks free for 65-yard TD
Vanderbilt only needed four plays on its opening drive to break a huge play, as Ke'Shawn Vaughn finds a seam to chug 64 yards for the touchdown.
Illinois QB knocks over ref on TD celebration
Illinois QB AJ Bush scores a touchdown and then accidentally knocks over the referee, but helps him up off the ground.
Who's taking the next step: Week 11
The SEC Nation crew picks winners for another week of SEC football.