John David Jackson reveals truth on Gennady Golovkin Sergey Kovalev sparring session <br /><br />In this Gennady Golovkin video and Sergey Kovalev video, John David Jackson speaks on the sparring session between Gennady Golovkin and Sergey Kovalev<br /><br />For more Boxing and MMA videos log onto http://www.fighthubtv.com<br />Like us:http://on.fb.me/xWRC1f<br />follow us:http://bit.ly/wACkIv<br />Boxing videos! MMA videos! uploaded daily! Subscribe:http://goo.gl/vnzIb
