Practice Two - Red Bull ace Ferrari in Singapore

Sebastian Vettel stamped his authority on proceedings in Friday night's second practice session in Singapore, lapping the Marina Bay circuit in 1m 46.374s in his Red Bull.

Last year's winner Fernando Alonso, however, was close behind on 1m 46.575s in the Ferrari, with Lewis Hamilton another half second shy on 1m 47.115s after damaging his McLaren's floor earlier on when he ran over an exit kerb. Felipe Massa was fourth, with 1m 47.120s in the second Ferrari, and Mark Webber fifth in the second Red Bull on 1m 47.265s.

It was a relatively uneventful session, but Jenson Button's day came to a premature halt with 50 minutes to go when his McLaren went wide at a corner and appeared to have some sort of brake problem which prevented him from continuing. Sauber's Kamui Kobayashi aviated over the chicane kerbs, and Sebastien Buemi hit the wall in Turn 22, tearing off his Toro Rosso's right-front wheel. And there were further complaints about the kerbs which had caused problems during the opening session.

Michael Schumacher continued to head Mercedes' challenge with sixth place on 1m 48.418s, ahead of Force India's Adrian Sutil on 1m 48.866s, then came Sergio Perez for Sauber on 1m 49.578s, team mate Kobayashi on 1m 49.730s, the stranded Button on 1m 49.751s and the lead Toro Rosso of Jaime Alguersuari, whose 1m 49.792s came despite missing the latter part of the session with technical woes.

Bruno Senna was again ahead of Renault team mate Vitaly Petrov, but it was close; the Brazilian lapped in 1m 50.241s, the Russian 1m 50.399s, and Paul di Resta squeezed between them right at the end with 1m 50.345s after problems with his Force India had kept him in the garage for much of the session.

Nico Rosberg was 15th for Mercedes on 1m 50.790s, ahead of the Williams duo of Rubens Barrichello and Pastor Maldonado on 1m 50.897s and 1m 50.937s. Maldonado went down an escape road right at the end.

Heikki Kovalainen was Lotus's quicker runner with 1m 51.950s, ahead of Buemi on 1m 52.257s and Jarno Trulli, whose T128 stopped towards the end with mechanical problems after he had lapped in 1m 52.489s.

Timo Glock was ahead of team mate Jerome D'Ambrosio at Virgin, with 1m 53.579s to 1m 54.649s, then Daniel Ricciardo lapped his HRT in 1m 54.754s to lead Tonio Liuzzi on 1m 55.198s after the Italian had taken his car back from Narain Karthikeyan during the break.