Mutua Madrid Open - Day Four [Getty Images]

MADRID, SPAIN - MAY 06: Dominic Thiem of Austria plays a backhand against Stanislas Wawrinka of Switzerland in their second round match during day four of the Mutua Madrid Open tennis tournament at the Caja Magica on May 6, 2014 in Madrid, Spain. (Photo by Clive Brunskill/Getty Images)

Getty Images Sport Clive Brunskill