Sebastian Vettel mystified by Red Bull's lack of single-lap pace in Practice at Monaco

Sebastian Vettel has admitted Red Bull are short of one-lap speed ahead of Saturday's all-important qualifying hour at Monaco.

Meanwhile, Vettel's Red Bull team-mate Mark Webber was reasonably satisfied with his running, although the Australian admitted that the team would start qualifying on the back foot. Asked if he could have matched Mercedes' blistering table-topping time, Webber told Sky Sports F1: "If we could, we would have done it today. But last year we were not really in the window until my last lap in Q3. "I think traditionally we're never too electric here on Thursday's, so today was actually one of the better ones we've had in the last few years. There are some quick cars out there; we've seen that on Saturday at the last few GPs. All in all, a reasonably smooth day for us, we've got plenty to go through now." The 2013 Monaco Grand Prix this weekend is live only on Sky Sports F1. Don't miss out, upgrade or subscribe to Sky Sports today or purchase a 24-hour day pass from Now TV