Claressa Shields wins world title in fifth weight class after KO of Lepage-Joanisse

• American also wins light heavyweight title with victory
• 29-year-old says win puts her in class of Muhammad Ali

Claressa Shields knocked out WBC heavyweight champion Vanessa Lepage-Joanisse early in the second round Saturday night, earning titles in a fourth and fifth division.

Shields, a two-time Olympic gold medalist, moved up two weight classes to fight at 175lbs as a light heavyweight and also claimed her Canadian opponent's heavyweight belt. Her previous titles were at 154, 160 and 168lbs.