UFC White House to be watched by 'a billion people all over the world' says Marco Rubio
Some 4,000 people will be in attendance at the White House for the event
Some 4,000 people will be in attendance at the White House for the event
The Gypsy King will be returning to the ring in April, having previously announced his retirement from the sport in January last year
Paddy Pimblett was defeated by Gaethje, who secured the interim lightweight championship through a unanimous decision victory