document: 7 March 2017 Last updated at 14:19 GMT
  UKIP's Jonathan Arnott will take on a Lib Dem activist at "chessboxing" which sees opponents fighting in the ring and then on the chess board.
  He explains all on the Daily Politics, joined by Lib Dem leader Tim Farron, who is less than successful in a very speedy game of speed chess.
summary: As Brexit battles continue to rage in Parliament, one UKIP MEP is taking on a Liberal Democrat rival in another arena.