Mercedes driver Nico Rosberg has blamed a gust of wind for allowing team-mate Lewis Hamilton to overtake him and win the Drivers' World Championship last weekend.
It seemed Rosberg was going to halt Hamilton's march towards victory when he led the US Grand Prix with ten laps to go until a wide line allowed the Englishman to take the lead and secure his third F1 title, while the German missed out for a second consecutive season.
"It was a gust of wind - a big one," Rosberg told reporters, according BBC Sport.
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"Everybody [experienced it] so you can't use it as an excuse, but I understand my mistake now and that's important, for me to understand it.
"It was a very unusual scenario which happened only once in all those laps."
The loss angered the German, who had seen Hamilton win ten of the season's races compared to his three. It consequently saw Rosberg throw his second place hat back at his team-mate after the race when the 30-year-old tossed it to him.
And his chances of winning an F1 title only look to get tougher as Ferrari are expected to become more competitive in 2016, with Sebastian Vettel currently challenging the Mercedes driver for second place.
But Rosberg is hoping to learn from last week's mistake and prepare himself, over the final three races, for what is surely to be a tougher Formula One campaign next year.
"I understand the mistake and that helps me a lot moving forward. I lost a lot of rear downforce as a result," Rosberg added.