BBC Sport's chief F1 writer Andrew Benson in Austin:
"The drivers will be looking for two things in qualifying - not only to be as fast as they can, but ideally to have an odd-numbered starting position. The track is very slippery off line, so those starting on the inside of the track expect to lose places at the start. Red Bull's Mark Webber said: 'The left-hand side of the grid will be a joke, so you want to be on the right-hand side if you could. The first corner is a bit like La Source in Spa, so we all know that.' At La Source this year, of course, there was a huge pile-up."