Matthew Cox undergoes a medical in Brentford today after beating Aston Villa to his signing, Football initiate understands.

This site revealed on July 15 that the Bees had made an offer for the AFC Wimbledon goalkeeper.

A source from Brentford said Football initiate the two clubs have now come to an agreement and he will put pen to paper after passing a medical exam.

Football initiate revealed in June that Norwich City and Aston Villa were racing to sign the 18-year-old.

He signed professional contracts with Wimbledon last summer.

However, Cox has yet to make his senior debut but was named to the bench for 17 Ligue 1 games last season.

Sam Walker and Nikols Tzanev shared the gloves in front of the teenager as the Dons narrowly escaped relegation from League One.

Cox also played twice for England Under-17 last season.

Brentford is looking for reinforcements for the Guardians after he frees Luke Daniels.

Daniel Raya is the undisputed first choice as he appeared in 42 games last season as Brentford secured promotion to the Premier League.

Cox will likely team up with his unique “B” team ahead of the new campaign.

The Bees academy operates outside the Under-23 system, but has managed to produce first-team players.

B-team graduate Emiliano Marcondes scored the second goal in his 2-0 win over Swansea City in the play-off final last season.

Ben Winterbottom and Nathan Shepperd, both 20, are the club’s current B-team goalkeepers.

In other news, Brentford submits a huge Celtic player bid.