Lewis Hamilton won Sunday 's Barhain Grand Prix ahead of Kimi Raikkonen . Hamilton is out of contract at the end of the year and is yet to sign new deal . It has been suggested that Hamilton could replace Raikkonen at Mercedes . But team principal Maurizio Arrivabene says he is happy with driver line-up .
Lewis Hamilton won Sunday 's Barhain Grand Prix ahead of Kimi Raikkonen . Hamilton is out of contract at the end of the year and is yet to sign new deal . It has been suggested that Hamilton could replace Raikkonen at Ferrari . But team principal Maurizio Arrivabene says he is happy with driver line-up .