As a child, Lionel Messi was diagnosed with a growth hormone deficiency. So the family relocated to Barcelona. The athletic club there had agreed to pay for his medical treatment. Messi became Barcelona's new star player at the age of 20.
Lionel Messi is an Argentine professional soccer player. He plays forward for Barcelona. He is Argentina's all-time leading goal scorer. He led Argentina to three consecutive finals in the 2014 World Cup.