Nico Rosberg set the fastest lap-time ahead of Mercedes team-mate Lewis Hamilton of a very strange first practice session for the Chinese Grand Prix which was delayed couple of times by tyre trouble.
Rosberg had the quickest lap time at 1 minute, 38.037 seconds, just ahead of his teammate, Hamilton, at 1:38.183.
Ferrari’s Sebastian Vettel had the third-fastest time of the session, a full half-second behind Hamilton.
Daniel Ricciardo finished fourth for Red Bull ahead of teammate Daniil Kvyat in P6, the pair split by Kimi Raikkonen in the second Ferrari.
Carlos Sainz Jr. led Toro Rosso’s charge in seven ahead of Jenson Button and Nico Hulkenberg, while teammate Max Verstappen rounded out the top 10.
It was a strange session for Williams’ speedy Felipe Massa struggled with rear left puncture on two occasions as session is red flagged and Renault’s Kevin Magnussen suffers same trouble, rear left puncture and suspension damage.
The red flag also came out after Magnussen’s tire blew out on the back straight, halting practice for 20 minutes toward the end of the session.
Felipe Massa, told Sky Sports F1: “We had two punctures. Why? I don’t know. We are investigating. For sure, something is touching the tyre or the wheel or whatever.
“We had no idea why we had the first problem. We checked the car and it was ok. But then we had the same problem.”