As fears that Typhoon Fitow could blow out Sunday’s Korean grand prix subside, the stage is set for another stormy showdown between Red Bull and Mercedes.

Mercedes driver Lewis Hamilton looked sharp as he completed a practice double on Friday, topping session one at the Korea International Circuit on the medium-compound tyres.

The Briton then repeated the feat on the supersofts during second practice, though Red Bull’s Sebastian Vettel finished a close second behind him on both occasions.