Total earnings: $10.8 million Prize money: $1.3 million Endorsements: $9.5 million
2/10
#9 Kei Nishikori
Total earnings: $11 million Prize money: $2 million Endorsements: $9 million
3/10
#8 Victoria Azarenka
Total earnings: $11.1 million Prize money: $3.6 million Endorsements: $7.5 million
4/10
#7 Andy Murray
Total earnings: $19.2 million Prize money: $4.1 million Endorsements: $15 million
5/10
#6 Serena Williams
Total earnings: $22 million Prize money: $11 million Endorsements: $11 million
6/10
#5 Li Na
Total earnings: $23.6 million Prize money: $5.6 million Endorsements: $18 million
7/10
#4 Maria Sharapova
Total earnings: $24.4 million Prize money: $2.4 million Endorsements: $22 million
8/10
#3 Novak Djokovic
Total earnings: $33.1 million Prize money: $12.1 million Endorsements: $21 million
9/10
#2 Rafael Nadal
Total earnings: $44.5 million Prize money: $14.5 million Endorsements: $30 million
10/10
#1 Roger Federer
Total earnings: $56.2 million Prize money: $4.2 million Endorsements: $52 million
Yahoo Sport Australia
The world's top earning tennis player won $4.2 million in prize money in 2014, but made more than 12 times that - a whopping $52 million - in brand endorsements.