Sporting Digest: Boxing

The former champion Edwin "Chapo" Rosario fell into a coma and died on Monday night, just months after staging a comeback that he said marked the end of his fight against cocaine addiction. He was 34.

Amateur boxing officials are investigating a report that Uzbekistan's Rushan Chagaev fought as a professional in two contests in 1996 before beating the Cuban heavyweight Felix Savon for the amateur world title last October. He will be disqualified and his gold medal awarded to Savon if the report in the American magazine Flash was confirmed.