Manny Pacquiao's done quite well in the ring. His record reflects it, so does his checkbook.
The website celebritynetworth.com estimates Pacquiao's net worth to be at $70 million. That would skyrocket with a fight against Floyd Mayweather Jr., but it appears that won't be happening anytime soon. Pacquiao announced last week he will be returning to the ring on May 7, but his opponent remains unknown.
The three most likely names being thrown around are Shane Mosley, Juan Manuel Marquez, and Andre Berto.
Neither have made near the money Pacquiao has, but some boxers have exceeded him. Besides revenue strictly from boxing, some have invested well while others have made additional money off investments and others business interests, along with income from boxing.
Here's a list of the top 10 biggest cash cows, with net worth from celebritynetworth.com.