BBC to reveal new Doctor Who companion
The reveal will be made during half-time of the FA Cup semi-final Match of the Day Live: Everton vs Manchester United at around 18.00GMT.
The new companion will star alongside current Doctor, Peter Capaldi, who plays the 12th iteration of the character.
The new companion replaces outgoing character Clara Oswald, played by Jenna Coleman, who was written out of the series in the Christmas 2015 special.