Klitschko vs Povetkin: Live stream, fight time, results, and round-by-round coverage

Today at 3:00 pm EDT on HBO, BoxNation, RTL, TV-1 in Russia, Sport 1 in Hungary, PolSat Sport in Poland, Main Event PPV in Australia, 3+ in Denmark, and probably some other channels around the world, the biggest heavyweight fight of 2013 will go live from Moscow, as Wladimir Klitschko defends his crown against Alexander Povetkin.

Klitschko (60-3, 51 KO) is facing on paper his toughest challenge in a while against the unbeaten Povetkin (26-0, 18 KO), a former amateur star who has been both angled toward and steered away from this fight ever since turning pro in 2005. The 34-year-old Povetkin has twice signed to face Klitschko in the past, once in 2008 and again in 2010.

But with a record purse bid by Vladimir Hryunov for this fight, it's finally here and happening. The 37-year-old Klitschko has been nearly untouchable since 2006, while Povetkin has been good but never great as a pro, something he'll have a chance to change this afternoon in Moscow.

BLH will be here with live coverage starting at 3:00 pm EDT, so join us as we kick off a big day of fights!