Highest-paid tennis players

Serena Williams (Right) of the U.S. shakes hands with Dominika Cibulkova of Slovakia after winning their women's singles quarter-final match at the Australian Open 2015 tennis tournament. PHOTO / AFP

Highest-paid tennis players:

#10 Caroline Wozniacki

Total earnings: $10.8 million Prize money: $1.3 million Endorsements: $9.5 million

#9 Kei Nishikori

Total earnings: $11 million Prize money: $2 million Endorsements: $9 million

#8 Victoria Azarenka

Total earnings: $11.1 million Prize money: $3.6 million Endorsements: $7.5 million

#7 Andy Murray

Total earnings: $19.2 million Prize money: $4.1 million Endorsements: $15 million

#6 Serena Williams

Total earnings: $22 million Prize money: $11 million Endorsements: $11 million

#5 Li Na

Total earnings: $23.6 million Prize money: $5.6 million Endorsements: $18 million

#4 Maria Sharapova

Total earnings: $24.4 million Prize money: $2.4 million Endorsements: $22 million

#3 Novak Djokovic

Total earnings: $33.1 million Prize money: $12.1 million Endorsements: $21 million

#2 Rafael Nadal

Total earnings: $44.5 million Prize money: $14.5 million Endorsements: $30 million

#1 Roger Federer

Total earnings: $56.2 million Prize money: $4.2 million Endorsements: $52 million