The Dons have just one point from two Group B matches after Diamond's opening goal was cancelled out on the stroke of half-time at Pittodrie.

But he told BBC Scotland: "We're still fighting - and the game here against FC Copenhagen will be massive.

"We want to be playing quality teams - it's a great experience for the boys."

Dons manager Jimmy Calderwood added: "It's a learning curve for us.

"We're making expensive mistakes and it's costing us big time.

"If we'd been 1-0 up at half-time it could have been completely different.

"They weren't causing us too many problems until they scored - but they did in the second half.

"I know we can play better - and that's two games now where I'm saying this.

"You can accept getting beaten by the better team - but this feels like a defeat.

"Our passing wasn't good enough - you need to be quicker at this level and we usually are."