Although his advertising deal with Mazda was saved, the swimmer didn't have as much luck with Kellogg's. Last week the cereal and snack maker refused to renew Phelps's endorsement deal.
The birds are even getting endorsement deals, such as their appearance in a hilarious TV spot for Google's (GOOG) Chrome browser.
He lost sponsorship deals with Gatorade and Accenture, while other endorsement deals were scaled down.