Top 5 American tennis players with the biggest net worth ft. $150 million-worth Pete Sampras, $145 million-worth Andre Agassi

Pete Sampras and Andre Agassi established themselves as tennis greats, taking home multiple Grand Slam trophies and climbing to the top of the world rankings. The success translates off court as well, with the net worth for both men being among the highest in the sport.

The list is dominated by American and four features in the top-11. Besides the legendary duo, let's take a look at the richest American tennis players based on their total net worth:

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#1 Serena Williams ($300 million)

Serena Williams (Source: Getty)

With an estimated value of $300 million Serena Williams is the richest American tennis player, the third richest overall. Even a glance at the American's career would put things into perspective. Over the course of mote than two decades, amassed 73 titles, including 23 Grand Slams. The resultant career-earnings put her at the top of the all-time women's ladder at $94.8 million.

Her status at an icon went beyond tennis and she drew a spate of high-profile brand endorsements, including her now-longstanding association with Nike. Serena launched her own businesses. She and sister Venus became minority owners of the Miami Dolphins way back in 2009. She later launched her own investment firm, Serena Ventures, further cementing her interest and involvement with the business world.

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#2 Pete Sampras ($150 million)

Pete Sampras (Source: Getty)

There's a sharp gap between the No. 1 and No. 2 of the list, with Pete Sampras's estimated $150 million being half of Serena Williams' total. The American is among the most successful men's tennis players in history, being placed ninth both in the overall titles and prize money lists. His career-earnings total also stands at a handsome $43.2 million.

The American was hugely popular during his playing years and earned big cheques from endorsements. His most notable association had been with Wison, which continued even after his retirement in the form of a dedicated racket line. Sampas was also actively involved in the real estate market, with his heavy investments in the sector giving him the distinctive edge over some of the others.

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#3 Andre Agassi ($145 million)

Andre Agassi (Source: Getty)

With an estimated worth of around $145 million, Andre Agassi follows his on-court rival Pete Sampras closely in the third spot. While the American had a hugely successful tennis career, his Grand Slam count remained in single digits at eight. The career-earnings, $31 million, therefore were significantly lower than the two players above him.

However, Agassi was able to separate him from the others with his aggressive investment in the hospitality sector. He, often with wife Steffi Grad, purchase, run and even sell off restaurants chains, hotels and resorts but. The couple increased their involvement with the sector with the founding of the Agassi Graf Holdings, expanding into furniture making and casinos. He also has/had major deals with brand including Nike, Kia Motors, American Express and Mazda.

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#4 John McEnro ($100 million

John McEnroe (Source: Getty)

Another popular American, John McEnroe, is also on the list. The gifted tennis player has made as many headlines with his on-court outbursts as he has for his volley. But the publicity has come in good as the American became the obvious choice for sponsors, resulting in partnerships with the likes of Nike.

For McEnroe, his longstanding associate with the camera also came in handy when he filmed for shows like Never I have Ever and other guest appearances. He has also been commentating on matches. Besides, high-value property and a keen business acumen help take his total into the triple digits.

#5 Venus Williams ($65 million)

Venus Williams (Source: Getty)

Venus Williams, the elder of the Williams sisters who took the tennis world by storm shortly after their arrival on the big stage, also finds herself inside the top-5 with an estimated worth of $65 million. To be fair, it was Venus who laid the path for Serena Williams and countless other girls by fighting for equal prize money at Grand Slams and even signing lucrative first-of-their kind deals. Her $12 million deal with Puma at the turn of the century was a game-changer for women.

The American would go on to win seven Grand Slam titles and was sponsored by brands like Nike. She launched her own athleisure wear brand "EleVev". Add to the mix a $42 million prize money from Tour events and you have a solid portfolio.