In 1985, which former professional boxer thought his career was over due to a rare respiratory illness?

Donovan "Razor" Ruddock (born December 21, 1963) is a Jamaican-born Canadian former professional boxer who competed from 1982 to 2001 and in 2015. He is known for his two fights against Mike Tyson in 1991, a fight against Lennox Lewis in 1992, and a fight with Tommy Morrison in 1995. Ruddock was also known for his exceptionally heavy punching; some of the best examples of his left hand and overall power was his knockouts of former heavyweight champions James Smith in 1989, Michael Dokes in 1990, and Greg Page in 1992.

He turned pro in 1982, but his career started slowly, having only 11 fights between 1982 and 1985. He won eight of his first nine fights, but drew his fifth. More controversy would follow in April 1985 when he lost to journeyman David Jaco, who would be KO'd by a young Mike Tyson the next year. After eight rounds Ruddock's corner threw in the towel when he complained of breathing problems. Jaco was awarded a TKO victory. It was discovered Ruddock had a rare respiratory illness and doctors told him his career would be over.

To his doctors' surprise, Ruddock made a full recovery within 10 months and resumed his boxing career by winning nine straight fights. Eight were by KO, with the ninth a win by decision win over former heavyweight title-holder Mike Weaver.