Johnny Unitas
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Johnny Unitas was one of the NFL’s first bonafide superstars. He was a popular quarterback with the Baltimore Colts in the 1950s and 60s. What did he do after retirement? After a series of unsuccessful business deals, including a failed bowling alley, he filed for bankruptcy in 1991. Later, he founded a succesful merchandising company. But after his death in 2002, the company went bankrupt two years later.