(CNN) -- Ethiopian distance runnning legend Haile Gebrselassie has given a strong hint that he may change his mind about retiring from athletics.
The 37-year-old dropped out of Sunday's New York City Marathon at the 16-mile mark with a knee injury then promptly announced that it would be his last competitive race.
It was a decision which stunned his sport because Gebrselassie had indicated he would try to carry on to the 2012 London Olympics. He is a two-time Olympic champion over 10,000m and the current world marathon record holder.
But now Gebrselassie -- who has built up a considerable fortune -- may be about to perform a U-turn.
He told his Twitter blog Wednesday that it was "time to think about a lot of things."
He added: "I still love running and I will always run. I am going to think about it."
Gebrselassie, a four-time world 10,000m champion, has turned to the marathon in recent years, but despite his record breaking exploits has still to win a major title over the distance.
He went into Sunday's race in the Big Apple as the star attraction and favorite to win, but he admitted beforehand that he had a knee problem and dropped out on the Queensboro Bridge while in the leading group.
"What a disappointing weekend, I didn't plan to come back to Ethiopia this way. I wanted to succeed in New York," he admitted in another entry to his Twitter blog.