Ethiopian world record holder Haile Gebreselassie will bid for a fifth Berlin Marathon title on September 25, organisers said on Friday. The 38-year-old wants to use the Berlin event to book his ticket to the Olympic Games in London in 2012, organisers said. \"I adore the Berlin marathon. Here on a good day everything is possible,\" the Ethiopian said in a statement. Gebreselassie, who announced his retirement last November before going back on the decision, has already won in Berlin from 2006 to 2009. The two-time Olympic champion at 10,000m -- in 1996 and 2000 -- did not compete in the marathon at the Beijing Games because of his fears over pollution in the Chinese capital. He holds the world marathon record of 2:03:59 since Berlin in 2008.