By Cork Gaines
Business Insider

We all know that athletes like Alex Rodriguez and Peyton Manning and Serena Williams are among the highest-paid in their sports. But the biggest contracts are not always reserved for the superstars.

If we take a closer look, there are many athletes that you might be surprised to learn either made a ton of money in their career, or rank very high among their peers despite flying under the radar of the casual American sports fan.

Athletes Who Have Made An Insane Amount Of Money

Cristie Kerr: $14,030,373
 

Cristie Kerr: $14,030,373

Sport: LPGA All-Time Rank (within sport): 4 Career Highlights: 14 career LPGA wins. Won 2007 U.S. Open and 2010 LPGA Championship.

Andy Roddick: $20,517,390
 

Andy Roddick: $20,517,390

Sport: ATP All-Time Rank (within sport): 10 Career Highlights: The surprise here is not that Roddick made a lot of money, but that he retired as 10th on the All-Time money list despite winning just one Grand Slam (2003 U.S. Open).

Kenny Perry: $31,797,536
 

Kenny Perry: $31,797,536

Sport: PGA All-Time Rank (within sport): 10 Career Highlights: 14 career PGA Tour wins. Has never won a major.

Albert Haynesworth: $48,553,347
 

Albert Haynesworth: $48,553,347

Sport: NFL All-Time Rank (within sport): N/A Career Highlights: 10 seasons with 4 teams. 2-time Pro Bowler.

Jim Furyk: $52,447,459
 

Jim Furyk: $52,447,459

Sport: PGA All-Time Rank (within sport): 4 Career Highlights: 16 career wins on the PGA Tour. Won the 2003 U.S. Open.

Jason Schmidt: $91,969,248
 

Jason Schmidt: $91,969,248

Sport: MLB All-Time Rank (within sport): 62 Career Highlights: 14 seasons with 3 different clubs. 3-time All-Star. Finished second in 2003 NL Cy Young voting.

Shawn Green: $100,616,066
 

Shawn Green: $100,616,066

Sport: MLB All-Time Rank (within sport): 51 Career Highlights: 15 seasons with 4 different clubs. 2-time All-Star. Highest finish in MVP voting was 5th (2002).

Kevin Martin: $110,784,447
 

Kevin Martin: $110,784,447

Sport: NBA All-Time Rank (within sport): 49 Career Highlights: 8 seasons with 2 clubs. Has never been named to an All-Star team.

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15 Surprising Athletes Who Have Made An Insane Amount Of Money
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Data via the respective sports leagues, Sports-Reference.com, or Spotrac.com. All sports are career earnings. Totals for NBA players include guaranteed money remaining on current contracts.