World Boxing already had announced its plan to require competitors to undergo a polymerase chain reaction test or an equivalent genetic screening test to determine their sex at birth. The rules will ...

The governing body for Olympic-style boxing will require sex testing for all fighters wishing to compete in the women’s ...

Chávez Jr. had an active arrest warrant in Mexico for his involvement in organized crime and was detained by U.S. immigration ...

Former middleweight boxing champion Julio Cesar Chavez Jr., who was arrested by federal agents in Studio City last month, was ...