From the tennis court to the soccer pitch, some elite athletes are proving that their careers don't have to end as they get older. At the World Cup, two of the biggest stars are 39-year-old Lionel Messi and 41-year-old Cristiano Ronaldo. 41-year-old NBA star LeBron James is looking to add anoth...
Source: [CBS News](https://www.cbsnews.com/video/how-athletes-messi-ronaldo-james-williams-extending-careers/)