Former undefeated IBO super-middleweight champion Thomas "Tommy Gun" Oosthuizen warned yesterday that the long reign of Jürgen Bräehmer as the WBA light-heavyweight champion would soon come to a screeching halt. The 27-year-old South African said he would dethrone the 36-year-old German at Salle des Etoilles, Monte Carlo, on November 7.Bräehmer has held the WBA belt since 2013 and has defended it five times. A former WBO champion, Bräehmer is unbeaten in seven years, having seen off a host of top contenders.He has fought only once outside Germany and will be leaving his safe confines to face Oosthuizen, who is one of the division's toughest and most talented contenders.Their clash - the biggest fight for Oosthuizen - will headline the "Night of Champions" programme promoted by Rodney Berman of Golden Gloves.Said Oosthuizen: "Jürgen has been a great champion. I hope he knows and understands that all good and bad things in life have to come to an end."I will be in great shape to make sure that once I have him in trouble I'll finish him off. I will definitely be a sharpshooter."I will have just the right plan on the night."Oosthuizen reigned supreme as the IBO super-middleweight champion for five years, chalking up seven defences before relinquishing that title.He moved up to the light-heavyweight class, where he won the WBC international belt in his first fight, in November. Oosthuizen is undefeated after 27 bouts with 25 wins and two draws.Trainer Harold Volbrecht said Bräehmer's power did not worry him at all."I would rather match Tommy against a puncher than a good boxer because most punchers are not good boxers. Tommy is on his way to bigger things; he's got age on his side and I am confident that he will emerge victorious on November 7."Berman added: "I am in negotiations with IBO president Edward Levine to include the vacant IBO belt so it becomes a dual world championship."..