A young football fanatic was given the shock of his life after a football mascot gave him a big surprise.

Oliver Borowski, nine, was expecting his regular assembly as Raglan School in Wellington Road, Enfield.

All of a sudden a giant green dinosaur known as Gunnersaurus, the Arsenal FC mascot, trundled into the room to the delight of all pupils.

The mascot revealed that it would be Oliver who had been chosen from 30,000 young Arsenal fan club members, known as Junior Gunners, to walk out with the side in their FA Cup semi final against Wigan Athletic at Wembley.

A Junior Gunner since he was just two years old, Oliver was ecstatic to hear the news that he would be walking onto the pitch at the home of football with his favourite players.

Father and football mad Rob and mother Charlotte, who is a Spurs fan, were told last Friday and admitted they found it hard to keep it a secret.

They said: “We found it hard not to tell him as we knew he would be so excited. We weren’t sure how he would react but we all can’t wait to go.”

Oliver, whose favourite player is club captain Thomas Vermaelan, is relishing the chance to stand side by side with his idols.

He said: “I really can’t wait until the big day, I am nervous but excited at the same time.

“I have never been to Wembley but I am hoping Arsenal will win.”

The game might start at 5.07pm but Oliver’s day starts a lot earlier as he will get the chance to tour Wembley before meeting the players and walking out with the captain.

Gunnersaurus entertained pupils at the school and some teachers could not resist a photo and a hug with the lovable figure.