C Ronaldo's football career began at an amateur club called Andorinha, where his father was the equipment manager when he was only 7 years old. In 1995, 10-year-old Ronaldo joined the Madeira National Club, which was where he started professional football. In 1996, Sporting Lisbon (Portuguese Sporting) discovered Ronaldo's talent. They acquired Ronaldo from Nacional de Madeira without paying at the time. In 1998, Sporting Lisbon officially bought Ronaldo, for which they paid ￡1,500. For 13-year-old Ronaldo, in 1998, the price of 1,500 pounds was not low. Of course, this was based on the fact that the Madeira nationals did not realize Ronaldo's potential. Cristiano Ronaldo shined when he entered Sporting Lisbon. In 2001, at the age of 16, Cristiano Ronaldo completed the quadruple jump of Sporting Lisbon U16, U17, U18, and U19. In 2002, the 17-year-old Ronaldo directly entered the first team of Sporting Lisbon. Opportunities are for those who are prepared, and Ronaldo is obviously ready. Faced with the covetation of Manchester United, although it only cost 1,300 pounds to sign Ronaldo, Sporting Lisbon was not willing to let go of this opportunity to make a fortune. After some bargaining, the 18-year-old was bought by Manchester United, and Manchester United had to pay 12.24 million pounds for this. In 5 years, Ronaldo helped Sporting Lisbon earn tens of millions of pounds (equivalent to RMB 120 million) in revenue. Sporting Lisbon Got a good income. From buying Ronaldo for 1,500 pounds to selling Ronaldo for 12.24 million pounds, Sporting Lisbon has earned 12.24 million pounds from the transfer fee alone, which is a full 1,000 times! It can be seen that this is a very successful transaction. Although Cristiano Ronaldo has left Sporting Lisbon, Sporting Lisbon, as Cristiano Ronaldo's parent team, can obtain "youth training fees". For every transfer of Cristiano Ronaldo, Sporting Lisbon can obtain 5 benefits, so When joining Real Madrid in 2009 and Juventus in 2018, Sporting Lisbon was able to earn millions of euros in income. It can be seen that if 1,500 pounds trained a Ronaldo, the money earned by Sporting Lisbon was respectively Transfer fee of 12.24 million pounds and youth training fee of nearly 10 million pounds.