It is 5:28 p.m., the sound system of the Accor Arena spits “Viva la vida” and Gilles Simon, 37, bag on his shoulder, leaves a tennis court for the last time. Félix Auger-Aliassime, sixteen years his junior, has just sent him to retirement definitively (6-1, 6-3 in 1h34). The young Canadian summed it all up in the winner’s ritual signature on the broadcast camera: “Thank you Gilou”…