LONDON, ENGLAND - NOVEMBER 15: Juan Guillermo Cuadrado of Florentina and Colombia (L) and Carlos Bacca of Colombia watch Roger Federer of Switzerland in the singles semi-final match against Stan Wawrinka of Switzerland on day seven of the Barclays ATP World Tour Finals at O2 Arena on November 15, 2014 in London, England. (Photo by Clive Brunskill/Getty Images)
Getty Images

Getty Images Sport Clive Brunskill