Tiriac, once a tennis player, amassed a staggering $1 billion fortune through business ventures.
With over $550 million, Federer's lucrative career and endorsements with Uniqlo shine.
Williams' net worth of $290 million includes numerous endorsement deals.
Djokovic's $240 million fortune comes from both tennis winnings and lucrative brand deals.
Nadal's $220 million net worth reflects his Grand Slam victories and lucrative sponsorships.
Sharapova's $220 million wealth stems from her tennis success and lucrative endorsements.
Agassi's $175 million fortune includes investments and business ventures with his wife.