The biggest pay per view sporting event of the decade went down on Saturday, August 28th between the "Notorious" Conor McGregor and Floyd "Money" Mayweather. This was a contest that had been in the making for over a year and had everyone anxious and eager to watch it. It was a rare occasion that the best fighter from mixed martial arts (MMA) would fight the best fighter in boxing, but under the rules of boxing.

A lot wonder why this fight happened, but it's clear to see why. Money. There was a huge sum of money involved in this fight, as shown by the name, the "billion dollar fight." While Conor and Floyd are two of the highest paid athletes on the planet, so is someone from the NBA, Cleveland Cavaliers superstar LeBron James.

The King made sure to show his appreciation for Floyd Mayweather's performance on Saturday night, but also had some kind words for the King of the UFC, Conor McGregor.

LeBron sends tweet to Conor McGregor

Conor McGregor stepped inside the boxing ring for his first professional boxing fight on Saturday, and while he was up against "The Best Ever," he still put on an amazing performance, winning the first four rounds and getting some punches landed on Mayweather, which many believed could not happen. This performance by the Irishman wasn't appreciated by everyone, but certainly LeBron James showed his respect.

These are some huge words from the King himself, who has shown a lot of appreciation for the two-time UFC champion in the past.

Money

Something LeBron James, Floyd Mayweather, and Conor McGregor have in common is money.

King James is currently the highest paid player in the National Basketball Association (NBA) when including salary and endorsements. In fact, his Nike lifetime contract is predicted to be worth over one billion dollars. That puts James on the same level as Michael Jordan, being the only billionaires to play professional basketball.

Floyd has been making huge amounts of cash for his fights throughout the years, and the two biggest ones have been against Manny Pacquaio and the recent one against McGregor, these fights have earned him $200-300 million, and pushed him into the billionaire club.

While McGregor is younger and newer to the money game, he certainly isn't afraid to flaunt it.

Conor now earns millions of dollars per fight compared to some fighters earning thousands -- he fought Mayweather for over $127 million, so it's safe to say the "Notorious" one has a lot in the bank right now.