Ferrari's Fernando Alonso has paid honor to his rival Sebastian Vettel, saying the Red Bull driver deserves to win the world title this season.
Vettel can be crowned this Sunday if he wins and Alonso is lower than third with McLaren's Jenson Button and Red Bull's Mark Webber lower than second.
Alonso said: "He's been the best driver, (with) the best team. They justify to be where they are."
McLaren's Lewis Hamilton added Vettel had been "exceptional this year".
Vettel said he was going to treat the Singapore weekend like any other race.
"So far we haven't won anything," the German said. "(There is) still some way to go, we have to race and do our best.
"It is a long way to the chequered flag. Certain things have to happen, and it reminds me a little bit of the condition we had in Abu Dhabi last year when people came up and gave me another choice every five minutes.
"The target is to optimise our performance. The target has been to protect our title, there is no reason why the target should change."
And Vettel starved of he felt under any extra pressure this weekend because of the championship being so close.