Floyd Mayweather ($915m) - He has held multiple world titles in five weight classes and "retired" with an undefeated record (50-0), although has talked of a comeback. Mayweather has generated approximately 24 million PPV buys and $1.67 billion in revenue throughout his career. Topped more than $500m in earnings for his 2015 and 2017 fights against Manny Pacquiao and Conor McGregor. AFP
Lewis Hamilton $400m (Dh1.5 billion) - the six times world Formula One champion, who won the last race of the season in Abu Dhabi, is in a league of his own. PA
Kevin Durant ($425m) - the Brooklyn Nets basketball player has been selected in 10 NBA All-Star teams and has won two NBA championships. Endorsement deals with Nike and Foot Locker go a long way to boosting his earnings. Getty
Manny Pacquiao ($435m) - the long-enduring Filipino boxer is the only eight-division world champion in the history of the sport. Pacquiao has generated 20 million in pay-per-view buys alone. USA Today
Phil Mickelson ($480m) - the American left-handed golfer has been in the world top 50 for 25 consecutive years, with 700 weeks in the top 10. He has won every Major apart from the US Open, where he has been runner-up six times. AP
Tiger Woods ($615m) - one of the most famous athletes of all time, some of that because of his off-course troubles. He has been the No 1 player in the world for the most consecutive weeks. Second only to Jack Nicklaus in Major wins. AP
Roger Federer ($640m) - the veteran Swiss player has won an incredible 20 grand slam titles and has been in a record 31 finals. He has been named the ATP Player of the Year and ITF World Champion five times and won the Laureus World Sportsman of the Year award a record five times. Signed a 10-year, $300 million deal with Uniqlo in 2018. AFP
LeBron James ($680m) - Rivals Michael Jordan as the greatest basketball player of all time. Fourth in all-time career points scored, and ninth in all-time assists. The LA Lakers star has been voted onto the All-NBA First Team 12 times and has been featured in books, documentaries, and television commercials. AFP
Lionel Messi ($750m) - Captain of Barcelona and one of the all time great footballers. The Argentine has won a record six Ballon d'Or awards, has scored the most a Liga goals (432), most hat-tricks (35) and has scored over 700 goals for club and country. Has been sponsored by adidas since 2006. AFP
Cristiano Ronaldo ($800m) - Juventus superstar as Messi's greatest rival. Talked about going into acting while in Dubai this week. Ronaldo holds the record for most goals scored in the Champions League (128) and has more than 700 career goals for club and country. EPA
Floyd Mayweather ($915m) - He has held multiple world titles in five weight classes and "retired" with an undefeated record (50-0), although has talked of a comeback. Mayweather has generated approximately 24 million PPV buys and $1.67 billion in revenue throughout his career. Topped more than $500m in earnings for his 2015 and 2017 fights against Manny Pacquiao and Conor McGregor. AFP
Lewis Hamilton $400m (Dh1.5 billion) - the six times world Formula One champion, who won the last race of the season in Abu Dhabi, is in a league of his own. PA
Kevin Durant ($425m) - the Brooklyn Nets basketball player has been selected in 10 NBA All-Star teams and has won two NBA championships. Endorsement deals with Nike and Foot Locker go a long way to boosting his earnings. Getty
Manny Pacquiao ($435m) - the long-enduring Filipino boxer is the only eight-division world champion in the history of the sport. Pacquiao has generated 20 million in pay-per-view buys alone. USA Today
Phil Mickelson ($480m) - the American left-handed golfer has been in the world top 50 for 25 consecutive years, with 700 weeks in the top 10. He has won every Major apart from the US Open, where he has been runner-up six times. AP
Tiger Woods ($615m) - one of the most famous athletes of all time, some of that because of his off-course troubles. He has been the No 1 player in the world for the most consecutive weeks. Second only to Jack Nicklaus in Major wins. AP
Roger Federer ($640m) - the veteran Swiss player has won an incredible 20 grand slam titles and has been in a record 31 finals. He has been named the ATP Player of the Year and ITF World Champion five times and won the Laureus World Sportsman of the Year award a record five times. Signed a 10-year, $300 million deal with Uniqlo in 2018. AFP
LeBron James ($680m) - Rivals Michael Jordan as the greatest basketball player of all time. Fourth in all-time career points scored, and ninth in all-time assists. The LA Lakers star has been voted onto the All-NBA First Team 12 times and has been featured in books, documentaries, and television commercials. AFP
Lionel Messi ($750m) - Captain of Barcelona and one of the all time great footballers. The Argentine has won a record six Ballon d'Or awards, has scored the most a Liga goals (432), most hat-tricks (35) and has scored over 700 goals for club and country. Has been sponsored by adidas since 2006. AFP
Cristiano Ronaldo ($800m) - Juventus superstar as Messi's greatest rival. Talked about going into acting while in Dubai this week. Ronaldo holds the record for most goals scored in the Champions League (128) and has more than 700 career goals for club and country. EPA
Floyd Mayweather ($915m) - He has held multiple world titles in five weight classes and "retired" with an undefeated record (50-0), although has talked of a comeback. Mayweather has generated approximately 24 million PPV buys and $1.67 billion in revenue throughout his career. Topped more than $500m in earnings for his 2015 and 2017 fights against Manny Pacquiao and Conor McGregor. AFP