An emphatic second half hat-trick from Bryan Mbeumo was enough to help Brentford knock Port Vale out of the Emirates FA Cup. Follow @EmiratesFACup on Twitter for in-game highlights and match updates! https://twitter.com/emiratesfacup Subscribe: https://www.youtube.com/thefacup To find out more about The Emirates FA Cup visit: TheFA.com/EmiratesFACup The Emirates FA Cup on Facebook http://www.facebook.com/TheFACup