Kimi Raikkonen was again unhappy with the front end of his Ferrari following practice on Friday for the Russian Grand Prix.

Raikkonen thought he had made a bit of a breakthrough in Singapore last month, but struggled in Japan last weekend.

The Finn was none too happy today either, ending FP1 at the Sochi Autodrom in eighth, before falling back to eleventh in FP2, over a second off team-mate Fernando Alonso, who was third in the sister F14 T.

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"Unfortunately I still don't feel comfortable with the front end and this prevented me from putting together a good lap," explained the 2007 F1 World Champion. "Now, along with the team, we will try and find a solution that will allow me to get the most out of the car."

Asked about his day in more detail, he added: "This first day of practice was given over to learning the track, which I like and although it's new, the grip level was good."

"In the first session, we went through our programme step by step, even if towards the end of the session I was unable to complete my last run," he continued.

"In the afternoon, we focused on tyre behaviour, with both compounds taking a long time to reach the maximum performance, which is unusual, especially for the soft tyre. In order to have a clearer picture on this topic, we will now have to wait for the track to evolve."