Billionaires are not only tech giants, like Musk, Zuckerberg, or Bezos. A considerable number of athletes also have extremely ...

Rory McIlroy completed a Career Grand Slam with victory at the Masters earlier this month but he still has some way to go to ...

Rory McIlroy has failed to match the career earnings of a host of golfing icons, including Tiger Woods and Phil Mickelson.