Mo Farah celebrates winning the Men's 10,000m final Martin Rickett/PA Wire. (Press Association via AP Images)
 
RIO DE JANEIRO (AP) -- Knocked down in the race he expected to win, Mo Farah made certain he wasn't out. 
 
After falling to the track during Saturday night's Olympic 10,000-meter final, Farah immediately thought of his oldest daughter, Rhianna. 
 
He had promised to win her a medal _ her twin sisters, born shortly after the London Olympics, each had a medal of their own. Rhianna was promised to get one in Rio. 
 
So Farah picked himself up, steadied himself mentally, and defending his Olympic title with a move off the final turn that gave him the gold. 
 
"When I fell down I was thinking 'My race is over. My dream is over,'" Farah said. "But then I managed to dig deep, and I promised my daughter, Rhianna, oldest daughter, that I was going to get her a medal and in my mind I was thinking 'No, I can't let her down.' The twins from 2012 got one of each, Rhianna is missing one, so, I can't let her down. That's all I was thinking, about her. That's why I was quite emotional at the end."