Sergey Kovalev tests positive synthetic testosterone, Jan.30th fight in doubt

By Jim Maltzman: Sergey Kovalev has reportedly tested positive for synthetic testosterone ahead of his January 30th headliner fight against Bektemir ‘Bully’ Melikuziev on DAZN.… read full story ←Read full article: Sergey Kovalev tests positive synthetic testosterone, Jan.30th fight in doubt @Boxing News 24