Horacio Zeballos Pictures
INDIAN WELLS, CA - MARCH 15: Horacio Zeballos of Argentina serves to Gilles Muller of Luxemburg and Sam Querrey while playing with Pablo Cuevas of Uraguay during the BNP Paribas Open at the Indian Wells Tennis Garden on March 15, 2018 in Indian Wells, California. (Photo by Matthew Stockman/Getty Images)