Ne-Jai Tucker and his Burnley Under 23 teammates defeated Everton 2 - 1 to keep their hopes of progressing to the knockout stages alive.
Scottish youth international Joe McGlynn was the hero with a superb 89th-minute winner.
Everton took the lead against the run of play after 31 minutes. Lewis Dobbin, who has played in the Premier League this season, cut in from the left and fired a shot into the corner of the goal.
The Clarets were level a minute before the break when ex-Everton youth Bobby Thomas headed home from Tucker’s left-wing corner.
Ex-Fleetwood goalkeeper Billy Crellin made a fantastic double save halfway through the first half to deny Ashley Barnes and Tucker.
The winner came in the 89th minute. McGlynn latched on to a lofted ball from Dara Costelloe. His cool finish won the game for Burnley.