Defending world champion Sebastian Vettel fended off returning former champion Kimi Raikkonen to win the Bahrain Grand Prix on Sunday for Red Bull first win of the Formula One season.

The German’s victory pushed him to the top of the drivers’ standings in a season that has produced a different winner in each of the opening four races.

Red Bull team-mate Mark Webber finished fourth for the fourth straight time.

Raikkonen’s Lotus team-mate Romain Grosjean took third.