BBC Sport - Fernando Alonso back in first practice for Malaysian GP & Lewis Hamilton hits problems

Rosberg quickest as Alonso returns

Fernando Alonso returns to action in first practice for the Malaysian Grand Prix, while Manor Marussia also complete their first running of the season.

The McLaren driver missed the first race of the season in Australia two weeks ago on medical advice after suffering concussion in a crash in pre-season testing.

Nico Rosberg set the pace in FP1 at Sepang, with his Mercedes team-mate Lewis Hamilton stopping out on track with an engine problem.

Available to UK users only.

Malaysian GP coverage details.