Arsenal mascot Gunnersaurus in the worst attempt at the Dizzy Goal challenge you will ever see as Arsene Wenger cracks up laughing

Wenger is left in fits of laughter after the Arsenal mascot falls flat on his backside twice

Gunnersaurus falls over after completing 10 of his 13 spins (Getty Images)

It's rare that Arsene Wenger affords himself a smile, unless it's in a pre-match press conference jibe towards his old adversary Jose Mourinho.

So when it was hammering it down with rain at Arsenal’s London Colney training base on Wednesday, Wenger must have been in a foul mood, right? Wrong.

Luckily, the club’s official mascot Gunnersaurus was on hand to cheer up the mood among Wenger and his playing squad with an attempt at the Dizzy Goals Challenge, the latest phenomenon sweeping training grounds that comes out of the same locker as the crossbar challenge.

However, rarely does it involve a giant green dinosaur and after Theo Walcott and Mikel Arteta attempted the challenge, Wenger handed the task over to Gunnersaurus. Chaos ensured.

Gunnersaurus begins the task of running around the ball as Wenger watches on (Getty Images)

Gunnersaurus falls over after completing 10 of his 13 spins (Getty Images)

Gunnersaurus then makes a complete howler of his shot as he misses the ball (Getty Images)

Gunnersaurus lies on the turf defeated (Getty Images)

Wenger’s claim that he is “very good” appears to be some way from the truth, as after rotating around the ball a head-spinning 10 times, Gunnersaurus promptly loses his balance and falls flat on his backside, much to Wenger’s amusement.

Watch the video below...

Just to rub it in, the 65-year-old Frenchman then completes the final two rotations for him, before Gunnersaurus makes a complete mess of the shot as he fails to make any contact with the ball whatsoever.

Then again, he is a giant green dinosaur.