Gogi Knezevic new GBU middleweight champion!Home, NewsJune 16th 2012 Guessing (Austria), GBU middle weight world title: Gogi Knezevic vs Bruce Rumbolz. Gogi “LIONHEART” Knezevic W by KO12 Bruce Rumbolz. The GBU would like to thank promoter Mr. Racz for this successful boxing event. June 16, 2012 https://globalboxingunion.com/wp-content/uploads/2012/10/knezevic.jpg 240 445 admin https://globalboxingunion.com/wp-content/uploads/2017/04/logo.png admin2012-06-16 08:13:472015-09-23 11:55:17Gogi Knezevic new GBU middleweight champion!