So much for Kubrat Pulev posing a serious threat to Wladimir Klitschko's heavyweight titles.
Pulev, an unbeaten Bulgarian billed by some as the most serious challenger Klitschko has faced in years, lasted only five rounds before Klitschko knocked him out with a left hook, extending his eight-year reign as the world's top heavyweight.
Click through for a photo gallery from the bout. (All photos are by Getty Images.)
Wladimir Klitschko made quick work Saturday of Kubrat Pulev, knocing the Bulgarian out in the fifth round. Here's a look at the fight in photos.