8 Celebrity Endorsement Disasters

8 Celebrity Endorsement Disasters
Filed under: martina hingis cocaine addiction
Martina Hingis was the face of women's tennis in the late '90s, winning five Grand Slam singles titles at a young age. It was clear to anyone … That same year, Hingis tested positive for cocaine use, derailing any attempt at a roaring comeback. 5 … Read more on Yahoo! News