The world’s top-earning sportsmen are making billions, according to Forbes’ annual list of the world’s highest-paid athletes. Their earnings reflect ballooning sponsorship deals, investments, and commercial rights. Mega contracts, lucrative brand deals, and sponsors Portuguese star Cristiano Ronaldo topped the list with a total income of $300 million, driven by a mega contract with Saudi Arabian club Al Nassr and lucrative endorsement deals. Lionel Messi came in fifth globally with $140 million, maintaining his position among sport’s highest-paid athletes. He also retains a strong commercial profile off the pitch. The report confirmed that the total income of the top ten athletes…