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MADRID, SPAIN - MAY 02: Feliciano Lopez of Spain plays a backhand against Leonardo Mayer of Argentina in their first round match during day three of the Mutua Madrid Open tennis tournament at the Caja Magica on May 02, 2016 in Madrid,Spain. (Photo by Clive Brunskill/Getty Images)

MADRID, SPAIN - MAY 02:  Feliciano Lopez of Spain plays a backhand against Leonardo Mayer of Argentina in their first round match during day three of the Mutua Madrid Open tennis tournament at the Caja Magica on May 02, 2016 in Madrid,Spain.  (Photo by Clive Brunskill/Getty Images)