Lionel Messi's childhood coach, Enrique Dominguez, decided to retire from football at the age of 45 after training Messi, whom he considers 'the best player in the world.' Dominguez first encountered Messi at Newell's Old Boys in Rosario, Argentina, where Messi's extraordinary talent was evident even as a child. Despite facing financial hardships, including his family's struggle to afford petrol for training, Messi's determination shone through. He was diagnosed with a growth hormone deficiency, which threatened his future in football. Fortunately, his family arranged for him to join FC Barcelona's youth academy, La Masia, which provided the necessary treatment. Dominguez reflects on Messi's skills, stating that he required no coaching as he was already performing at an elite level at just 12 years old. The legacy of Messi's journey is celebrated in Rosario, with murals and messages of gratitude adorning his childhood neighborhood.