from the opening bell, with Brock seemingly doing the better work in the early rounds, going back-and-forth between combinations to the head and body and not allowing Bostice to fire back. Brock appeared to be tired going into the middle rounds, fighting rather defensively, but picked up his pace after the seventh, hurting Bostice several times and almost stopping him in the ninth round. The twelfth round saw both fighters slugging it out, with the crowd chanting "Calvin! Calvin! Calvin!". The fight ultimately went the distance, with Brock being declared the winner by unanimous decision, with scores 118–110 (twice) and 116–112. The fight was widely praised for being a slugfest. On February 25, 2006, in a stay-busy fight, Brock faced Zuri Lawrence on the undercard of the fight between Shane Mosley and Fernando Vargas on HBO PPV at the Mandalay Bay Events Center in Las Vegas. Regarded by the public as an experienced journeyman with a record of 20 wins, 10 losses and 4 draws, Lawrence was coming off of upset victory over Jameel McCline. The first five rounds were tentative, with Brock slowly breaking Lawrence down and winning every round. At the end of the sixth round, Brock caught Lawrence with a left hook, knocking him out cold. Lawrence fell flat on his back and was unconscious for several minutes. Brock remains the only boxer to knock Lawrence out. The knockout received The Ring's KO of the Year award. At the conclusion of 2005, Brock was ranked No.7 heavyweight in the world by The Ring and No.9 heavyweight by BoxRec. With 28–0 record, Brock was offered to fight Wladimir Klitschko for IBF world heavyweight championship in the summer of 2006 by Klitschko's advisor Shelly Finkel, but Brock declined citing disagreement with the offered terms. Instead, Brock opted to face undefeated prospect Timur Ibragimov on June 24, 2006. The fight took place in Caesars Palace in Las Vegas, Nevada, where Brock had previously defeated Jameel McCline, and was aired on HBO as part of the Boxing After Dark series. During the fight, the temperature exceeded , which resulted in each fighter unwilling to press the action. Brock ultimately won the bout by unanimous decision, with scores 119–109, 115–113 and 117–111. "His style was a contrast to mine. He was very cautious of being hit, always moving away. In the 6th or 7th round, I rocked him, he was hurt but