Haile Gebrselassie of Ethiopia, one of the greatest distance runners, announced his retirement on Sunday after quitting the New York Marathon injured, dpa reported.
"I am retiring ... Let me do another job," Gebrselassie told a news conference after quitting the race with right knee problems after 25 kiloemtres.
Gebrselassie, 37, won Olympic 10,000 metres gold medals 1996 and 2000 and four straight world titles over the distance 1993-1999. He set the marathon world record 2007 in Berlin and bettered it to 2 hours 3 minutes 59 seconds at the same race in 2008.