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.
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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.