Jorge Lorenzo has vowed to make up for his error in the Czech MotoGP, where the Spaniard crashed out of the lead while racing with his teammate and title rival Valentino Rossi.
The accident cost Lorenzo another 25 points in the championship race and he is now 50 adrift of the reigning world champion.
After the race the 22-year-old held his hands up and apologized for the accident which occurred when Rossi tried to pass him into Turn 3 on lap 18.
"I just didn't have the same pace that I'd had all weekend," explained Lorenzo. "I was slower than in the practices and it really wasn't what I was expecting. Unfortunately for me, Valentino was just as strong as he'd been all weekend and I had to push very, very hard to stay with him.
"Towards the end I began to close the gap and after I passed him I was doing everything to stay in front, but then I made a mistake and crashed.
"There's nothing more I can say except that I'm so sorry to the team and to Yamaha and I will do everything I can to make it up in America."