Sochi: Nico Rosberg admitted he needs to win the final three races of the season if he is to beat Mercedes team-mate Lewis Hamilton to the Formula One world title.
On the day when Hamilton triumphed at the Russian Grand Prix with consummate ease for his 31st career win, Rosberg conceded he locked up during a rush of blood on the opening lap when he misjudged his effort to pass the Englishman at Turn Two in Sunday's race.
"I was in a battle with Lewis and I messed up," he said. "It was a bad mistake too. It was my corner -- or I thought it was -- but it was the first time arriving there at full speed with full fuel.