IBF says Gennady Golovkin must fight Sergey Derevyanchenko by Aug.3

By Jim Dower: Earlier on Friday the IBF granted the requested exception by IBF middleweight champion Gennady Golovkin for him to face Vanes Martirosyan in a voluntary defense on May 5 on the condition that GGG faces his IBF mandatory Sergey 'The Technician' Derevyanchenko (12-0, 10 KOs) by no later than August 3. That's part […] Boxing News 24 - Twitter: @boxingnews24