Sakhir, Bahrain - Jarno Trulli clinched pole position ahead of team-mate Timo Glock in a Toyota one-two in qualifying Saturday for Sunday's Formula One Bahrain Grand Prix. Red Bull's Sebastian Vettel, the winner in Shanghai last week, was third, ahead of Brawn GP's Jenson Button, the overall leader.

World champions Lewis Hamilton in a McLaren-Mercedes was fifth fastest, ahead of Brawn GP's Rubens Barrichello.

Renault's Fernando Alonso, Ferrari's Felipe Massa, Williams' Nico Rosberg and Ferrari's Kimi Raikkonen filled the rest of the top 10.

Italian Trulli clocked 1 minute 33.431 seconds to edge team-mate Glock of Germany by 0.281 seconds in a best-ever qualifying performance by the Toyota team.

BMW Sauber's Robert Kubica and Nick Heidfeld both failed to make the third and final qualifying stage.

Red Bull's Mark Webber was a casualty in the first qualifying round when he was held up by Adrian Sutil in a Force India, and the Australian - second in Shanghai last week
- failed to make the cut. and will start 19th in the 20-car field.