Sebastian Vettel has admitted that he does not know how his Red Bull would handle wet conditions during tomorrow's Korean Grand Prix.
The three-time world champion secured pole position in Yeongnam earlier today on a dry track, but could be racing in the rain on Sunday.
The German told Sky Sports News: "It was close today. I had a very good lap in Q3 on my first attempt and thought I would find it hard to do better.
"We're good in Sector one this year which a surprise as that's mostly straights. We improved the car from yesterday as I wasn't entirely happy with it after the second practice.
"In terms of conditions, we should be okay if it's dry or wet tomorrow, it's not clear if we get some rain from the typhoon, but let's see what happens."
Vettel currently has a 60-point lead at the top of the drivers' standings.