Lionel Messi sensationally announced his retirement from international football on Monday after Argentina crashed to an upset defeat against Chile in the final of the Copa America.‘For me the national team is over. I’ve done all I can, it hurts not to be a champion,’ the 29-year-old Barcelona superstar told reporters after his fourth defeat in a major final with Argentina.Chile stunned Argentina to win the Copa America Centenario in a penalty shootout as Messi’s title curse struck again. Messi blazed a penalty over the bar in the shoot-out before Lucas Biglia missed to leave Chile’s Francisco Silva with the task of stroking home the winning spot-kick at the MetLife Stadium