Jenson Button says that McLaren will revert to a normal set-up after a radical approach failed during Friday practice.
Button said ahead of practice that he would try a radical set-up on his McLaren MP4-28 but conceded following the second of Friday's 90 minute sessions that it had failed.
Button was 10th fastest in practice two.
"We tried a number of different set-ups this morning – but I think our baseline was in the wrong place, so they didn’t particularly work around this type of circuit," he said.
"So we reverted to more of a traditional set-up for the afternoon, and we developed the car over the course of the day, so we’re now getting there, despite the setbacks of the morning. In a way that’s positive, because it meant that we’d already been getting the best out of the car for the whole year."
"The tyres will be very interesting this weekend – the Prime tyre seems to last forever, while the Option tyre doesn’t! There’s a very big difference between the two tyre compounds so I think we’ll see some very interesting strategies this weekend."
Team-mate Sergio Perez was ninth quickest but does not expect huge improvements.
"Overall, I think we’re in the same position that we’ve been in for the last three or four races – so our objective tomorrow will be to have a strong qualifying session and to make it into Q3," he said.