We're used to hearing about the vast sums of money earned by the likes of footballers, golfers and tennis players - but in recent years rugby union has been catching up.
The top dogs of the sport can now expect to earn salaries of hundreds of thousands of pounds - and that's before bonuses, sponsorship and image rights.
And history has been made recently with players passing the £1 million-a-year mark for the first time.
We've looked at a number of sources to come up with this rugby union rich list - based on reported salaries paid out by the world's biggest clubs.
Here are the top 10.