Usain Bolt is not invincible.

In a surprising upset, Tyson Gay beat Bolt in a 100-meter race at the DN Galan meet, The Associated Press reports.

Gay, an American, finished the race in 9.84 seconds, while Bolt came in at 9.97.

"I think it showed that I wasn't in the best of shape," Bolt told the AP. "I'm not unbeatable. I can be beaten and it showed today."

Gay agreed that perhaps Bolt wasn’t in his finest form but he relished the victory anyway.

"I'm really happy with the win, even though Usain Bolt isn't in the best shape," Gay told the AP. "It was very important to beat someone like that for the fans and the sport."

At the 2008 Beijing Olympics, Bolt won the 100- and 200-meter races, the first man to sweep both sprints at an Olympics since Carl Lewis in 1984. He continued to dominate at the world championships in Berlin setting another world record of 9.58.

"This is my easy season," Bolt said after his defeat. "If you don't beat me this season it's not going to happen next season because next year is a championship year."