Lionel Messi experienced his worst moment in an Argentina shirt when he lost a second consecutive final in the 2016 Copa America, on penalties to Chile.
Elvio Paolorosso, Gerardo Martino's fitness coach, described the No.10's tough moment in the immediate aftermath of the painful defeat.
"The dressing room after the Copa America was very painful, but the worst was to come," he said.
"At 2 in the morning, more or less, I went to the store room and found Leo [Messi] completely alone, crying like a kid who lost his mother," Paolorrosso admitted.
"He was distraught and nobody could console him. I gave him a hug and we had a little whine together.
"I had Messi in Barcelona and Argentina and all I have for him are words of gratitude. He always cooperated well and even noticed if the pitch was hard or soft," he finished.