The boss was disappointed how we managed to let slip a thoroughly deserved 1-0 lead at half-time as the home side came out firing after the break.
Two goals in four minutes from Robbie Blake and Steve Davis did the trick for Clarets although Robbie Keane missed three one-on-one chances and then rattled the crossbar with a stunning volley in injury time.
Glenn pondered at Turf Moor: "We're very disappointed after getting ourselves in the lead and being in control of the game.
"I can't believe what's happened afterwards, quite frankly. We should never have let that slip. But it's happened and to be fair to Burnley they deserved their win.
"We've missed three one-on-ones and hit the bar but other things were wrong about our game when we were in control - and that is unacceptable.
"We lost Les at half-time and Matthew soon after, so we had to make adjustments, but there are no excuses, from 1-0 up we should have gone on to win the game.
"Credit Burnley, they did well. They had nothing to lose, lost a bit of fear in their game and went for it. We said at half-time it would be tough but we didn't react to it.
"We missed the chances and at this level, if you don't take them, you are on offer. But my major concern is how we lost the game after being in control."
Glenn Hoddle offered no excuses after our exit from the Worthington Cup at the hands of Burnley last night.