Bottas leaving Mercedes F1 team to join Alfa Romeo

Williams driver George Russell of Britain steers his car during the third free practice session ahead of Sunday's Formula One Dutch Grand Prix at the Zandvoort racetrack, Netherlands, Saturday, Sept. 4, 2021. (AP Photo/Francisco Seco)

Mercedes driver Valtteri Bottas of Finland answers media's questions after completing the qualifying session for Sunday's Formula One Dutch Grand Prix at the Zandvoort racetrack, Netherlands, Saturday, Sept. 4, 2021. Bottas set the third fastest time. (AP Photo/Francisco Seco, Pool)

Mercedes driver Lewis Hamilton of Britain, right, is congratulated by his teammate Valtteri Bottas of Finland after setting the second fastest time in the qualifying session for Sunday's Formula One Dutch Grand Prix at the Zandvoort racetrack, Netherlands, Saturday, Sept. 4, 2021. Bottas set the third fastest time. (AP Photo/Francisco Seco, Pool)

Mercedes driver Lewis Hamilton of Britain steers his car during the Formula One Dutch Grand Prix, at the Zandvoort racetrack, Netherlands, Sunday, Sept. 5, 2021. (AP Photo/Peter Dejong)

Williams driver George Russell of Britain attends a press conference ahead of Sunday's Formula One Dutch Grand Prix at the Zandvoort racetrack, Netherlands, Thursday, Sept. 2, 2021. (Andrej Isakovic, Pool via AP)

FILE - In this Saturday, Aug. 28, 2021 file photo, Alfa Romeo driver Kimi Raikkonen of Finland steers his car during the third practice session ahead of the Formula One Grand Prix at the Spa-Francorchamps racetrack in Spa, Belgium. The Belgian Formula One Grand Prix will take place on Sunday. Kimi Raikkonen will retire at the end of the Formula One season, concluding a career that spanned two decades and included the 2007 world championship. Raikkonen is in the final year of his contract with Alfa Romeo. The Finn announced his departure on Instagram on Wednesday Sept. 1, 2021, ahead of this weekend's Dutch Grand Prix at Zandvoort. (AP Photo/Francisco Seco, File)

FILE - In this Wednesday, May 19, 2021 file photo, Alfa Romeo driver Kimi Raikkonen of Finland attends a press conference ahead of Sunday's Formula One race, in Monaco. Kimi Raikkonen will retire at the end of the Formula One season, concluding a career that spanned two decades and included the 2007 world championship. Raikkonen is in the final year of his contract with Alfa Romeo. The Finn announced his departure on Instagram on Wednesday Sept. 1, 2021, ahead of this weekend's Dutch Grand Prix at Zandvoort. (Sebastien Nogier/Pool via AP, File)

Second placed Mercedes driver Lewis Hamilton of Britain celebrates after the Formula One Dutch Grand Prix, at the Zandvoort racetrack, Netherlands, Sunday, Sept. 5, 2021. (AP Photo/Francisco Seco)