Sebastian Vettel

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Red Bull driver Sebastian Vettel of Germany watches after he backs to the pits after failing to complete the Monaco Formula One Grand Prix, at the Monaco racetrack, in Monaco, Sunday, May 25, 2014. (AP/hoto/Boris Hovat/ Pool)

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Mercedes driver Nico Rosberg of Germany, Mercedes driver Lewis Hamilton of Britain and Red Bull driver Sebastian Vettel of Germany follow a safety car during the second lap of the Monaco Formula One Grand Prix, at the Monaco racetrack, in Monaco, Sunday, May 25, 2014. (AP Photo/Luca Bruno)

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Mercedes driver Nico Rosberg of Germany, Mercedes driver Lewis Hamilton of Britain and Red Bull driver Sebastian Vettel of Germany follow a safety car during the second lap of the Monaco Formula One Grand Prix, at the Monaco racetrack, in Monaco, Sunday, May 25, 2014. (AP Photo/Luca Bruno)

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Red Bull driver Sebastian Vettel of Germany steers his car during the first free practice at the Monaco racetrack, in Monaco, Thursday, May 22, 2013. The Monaco Formula One Grand Prix will be held on Sunday. (AP Photo/Claude Paris)

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Red Bull driver Sebastian Vettel of Germany steers his car during the third free practice ahead of the Spain Formula One Grand Prix at the Barcelona Catalunya racetrack in Montmelo, near Barcelona, Spain, Saturday, May 10, 2014. (AP Photo/Manu Fernandez)

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FILE - In this May 10, 2014 file photo, Red Bull driver Sebastian Vettel of Germany steers his car during the third free practice ahead of the Spain Formula One Grand Prix at the Barcelona Catalunya racetrack in Montmelo, near Barcelona, Spain. Mercedes may have taken home all the glory from the Spanish Grand Prix, but Sebastian Vettel's driving display went a long way to repairing the four-time champion's reputation after his struggles this season. (AP Photo/Manu Fernandez, File)

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Red Bull driver Sebastian Vettel of Germany steers his car during the Spain Formula One Grand Prix at the Barcelona Catalunya racetrack in Montmelo, near Barcelona, Spain, Sunday, May 11, 2014. (AP Photo/Emilio Morenatti)

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Red Bull driver Sebastian Vettel of Germany steers his car during the qualifying session ahead of the Spain Formula One Grand Prix at the Barcelona Catalunya racetrack in Montmelo, near Barcelona, Spain, Saturday, May 10, 2014. Vettel's car rolled to a halt during Friday's first practice session, and it failed him again early in the third period of qualifying.(AP Photo/Luca Bruno)

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Red Bull driver Sebastian Vettel of Germany walks in the paddock prior to the start of the third practice session ahead of the Spain Formula One Grand Prix at the Barcelona Catalunya racetrack in Montmelo, near Barcelona, Spain, Saturday, May 10, 2014. Vettel's car rolled to a halt during Friday's first practice session, and it failed him again early in the third period of qualifying.(AP Photo/Luca Bruno)