Kimi Raikkonen led a Ferrari one-two in Malaysian Grand Prix practice with the world motor racing champions back up to speed after a difficult start to the season.
Raikkonen, the 2007 world champion who won at Sepang last year, fired in a quickest lap of one minute 35.707 seconds in the afternoon to end Nico Rosberg's four-session run at the top of the timesheets.
Brazilian team mate Felipe Massa was second fastest in 1:35.832.
Neither Ferrari driver scored a point in the Australian season-opener in the Italian team's worst start to a season since 1992.
McLaren's world champion Lewis Hamilton was seventh quickest in the morning, a day after he was stripped of third place from Australia for "deliberately misleading" stewards at the post-race enquiry.