Reigning champ Jorge Lorenzo was handed victory at his home MotoGP race on a dramatic wet afternoon in Spain which saw former world champions Valentino Rossi and Casey Stoner clash.
Yamaha rider Lorenzo eased to a comfortable victory at Jerez after Rossi crashed into Stoner after an ill-advised overtaking manoeuvre at the end of lap six.
Ducati rider Rossi had stormed through the pack after starting the race in 12th place as he used all his experience and was able to continue but the collision ended Repsol Honda rider Stoner's race.
Marco Simoncelli then looked set to win his maiden MotoGP race as he was left in the lead but he crashed out to hand Lorenzo the win and the overall lead.
Stoner's team-mate Dani Pedrosa made it a one-two for Spain. Rossi eventually came home in fifthwhile British rider Cal Crutchlow was eighth.
The field started with full wet tyres on a damp track in light rain and Rossi put his wet weather skills to good effect as he made up four places on the opening lap.
Rossi entered the Honda garage after the race to apologise for the clash to Stoner, who told the nine-time world champion: “Your ambition outweighed your talent.”
The Australian was less pleased with the marshals, who helped Rossi remount his bike while Stoner was left to unsuccessfully attempt to restart his Honda.
He said: “It was a racing incident and there's not much we can do, what is more frustrating is the reaction of the stewards and their assistance for Valentino and not for me, it was unbelievable.”
Rossi told Italian television: “It's completely my mistake and I have to say sorry to Casey. “I know that he's very angry because he didn't make any mistakes. I went straight to say sorry.
“At the end the fifth place is a positive result if it was in the dry, but in the wet we were more competitive.
“We were lucky today with the weather.”