Red Bull has "got some work to do" to be competitive in the Monaco Grand Prix, according to Mark Webber.

14738 - Red Bull pair cautious after practice

In a first session that saw the top five drivers covered by half a second, Webber was 13th fastest while his team-mate Sebastian Vettel was ninth. In the second session, rain meant neither set a time on supersoft tyres to compare to Jenson Button, but both drivers were over a second slower than the fastest time set on soft tyres by Romain Grosjean.

Webber admitted that all the teams struggled with the weather in FP2 but said that Red Bull needs to improve.

"It was not easy for us, as for all the teams today, and we've got some work to do in the next 24 hours," Webber said. "There are clearly some very quick cars and we need to see where we can improve. Obviously it was limited running for everyone, so we didn't do as much as we would have liked; but that's how it went today and Monaco's like that - it throws up some challenges. The track's quite inconsistent in terms of grip - but we did learn some things today."

Vettel was slightly less concerned, but acknowledged that he didn't know how competitive he is.

"We didn't learn too much from today due to the conditions," Vettel said. "It wasn't ideal as this morning we had a red flag and then it rained this afternoon; as a result it's hard to say where we are. We didn't have a lot of grip due to the rain, it was very slippery on track and there were a lot of cars out at the same time - but it was the same for everyone."