Coventry City will travel to Cambridge United in the FA Cup Second Round on Sunday December 4th at 2pm
In this First Round Replay, Dover took the lead with a 70th minute goal from Ricky Miller.
Cambridge hit the bar twice and had a Roberts goal ruled out for offside and in the second minute of stoppage time, Roberts equalised to send the game into extra time.
In the 102nd minute, Aswad Thomas rifled home a shot to restore's Dover's lead before former Coventry City defender Blair Adams came on for Cambridge United who equalised again through Leon Legge in the 111th minute.
With three minutes to go, Elito fired home on the left and in stoppage time, Williamson scored as Cambridge United went through with a 4-2 AET win.