MADRID, SPAIN - MAY 07: Rafa Nadal is watched by his coach Toni Nadal during a practice session during day two of the Mutua Madrid Open tennis at La Caja Magica on May 7, 2017 in Madrid, Spain. (Photo by Denis Doyle/Getty Images)
MADRID, SPAIN - MAY 07: Rafa Nadal is watched by his coach Toni Nadal during a practice session during day two of the Mutua Madrid Open tennis at La Caja Magica on May 7, 2017 in Madrid, Spain. (Photo by Denis Doyle/Getty Images)