Tennis - Croatia v France - Davis Cup Semi Final - Kresimir Cosic Hall, Zadar, Croatia - 17/9/16 Croatia's head coach Zeljko Krajin reacts during the men's match between Croatia's Marin Cilic and Ivan Dodig and France's Pierre-Hugues Herbert and Nicolas Mahut. REUTERS/Antonio Bronic

Britain Tennis - Great Britain v Argentina - Davis Cup Semi Final - Emirates Arena, Glasgow, Scotland - 16/9/16 Great Britain's Andy Murray after losing his match against Argentina's Juan Martin del Potro Action Images via Reuters / Andrew Boyers Livepic

Britain Tennis - Great Britain v Argentina - Davis Cup Semi Final - Emirates Arena, Glasgow, Scotland - 16/9/16 Great Britain's Andy Murray looks dejected during his match against Argentina's Juan Martin del Potro Action Images via Reuters / Andrew Boyers Livepic

Britain Tennis - Great Britain v Argentina - Davis Cup Semi Final - Emirates Arena, Glasgow, Scotland - 16/9/16 Argentina's Juan Martin del Potro in action against Great Britain's Andy Murray Action Images via Reuters / Andrew Boyers Livepic

Britain Tennis - Great Britain v Argentina - Davis Cup Semi Final - Emirates Arena, Glasgow, Scotland - 16/9/16 Great Britain's Andy Murray after losing his match against Argentina's Juan Martin del Potro Action Images via Reuters / Andrew Boyers Livepic

Britain Tennis - Great Britain v Argentina - Davis Cup Semi Final - Emirates Arena, Glasgow, Scotland - 16/9/16 Great Britain's Andy Murray in action against Argentina's Juan Martin del Potro Action Images via Reuters / Andrew Boyers Livepic

Britain Tennis - Great Britain v Argentina - Davis Cup Semi Final - Emirates Arena, Glasgow, Scotland - 16/9/16 Great Britain's Andy Murray during his match against Argentina's Juan Martin del Potro Action Images via Reuters / Andrew Boyers Livepic

Britain Formula One - F1 - British Grand Prix 2016 - Silverstone, England - 10/7/16 Red Bull Team Principal Christian Horner before the race REUTERS/Matthew Childs Livepic