POZUELO DE ALARCON, SPAIN - SEPTEMBER 25: Prince Felipe of Spain and Princess Letizia of Spain visit King Juan Carlos of Spain at Quiron Hospital, where Spain's King Juan Carlos has undergone an operation, on September 25, 2013 in Pozuelo de Alarcon, Spain. The King yesterday had his left prosthetic hip replaced due to an infection. The operation was the King's eighth in three years. (Photo by Europa Press/Europa Press via Getty Images)
