Ferrari driver Charles Leclerc of Monaco leads the field at the start of the Singapore Formula One Grand Prix, at the Marina Bay City Circuit in Singapore, Sunday, Sept. 22, 2019. (AP Photo/Lim Yong Teck)

Ferrari driver Sebastian Vettel of Germany steers his car during the Singapore Formula One Grand Prix, at the Marina Bay City Circuit in Singapore, Sunday, Sept. 22, 2019. (AP Photo/Vincent Thian)

Ferrari driver Sebastian Vettel of Germany steers his car on the way to win the Singapore Formula One Grand Prix, at the Marina Bay City Circuit in Singapore, Sunday, Sept. 22, 2019. (AP Photo/Lim Yong Teck)

Ferrari driver Sebastian Vettel of Germany steers his car on the way to win the Singapore Formula One Grand Prix, at the Marina Bay City Circuit in Singapore, Sunday, Sept. 22, 2019. (AP Photo/Lim Yong Teck)

Mercedes driver Lewis Hamilton of Britain steers his car during the Singapore Formula One Grand Prix, at the Marina Bay City Circuit in Singapore, Sunday, Sept. 22, 2019. (AP Photo/Vincent Thian)

Mercedes driver Lewis Hamilton of Britain steers his car during the Singapore Formula One Grand Prix, at the Marina Bay City Circuit in Singapore, Sunday, Sept. 22, 2019. (AP Photo/Vincent Thian)

Mercedes driver Valtteri Bottas of Finland steers his car during the Singapore Formula One Grand Prix, at the Marina Bay City Circuit in Singapore, Sunday, Sept. 22, 2019. (AP Photo/Vincent Thian)

Ferrari driver Charles Leclerc of Monaco leads the field at the start of the Singapore Formula One Grand Prix, at the Marina Bay City Circuit in Singapore, Sunday, Sept. 22, 2019. (AP Photo/Lim Yong Teck)

Red Bull driver Max Verstappen of the Netherlands steers his car during the Singapore Formula One Grand Prix, at the Marina Bay City Circuit in Singapore, Sunday, Sept. 22, 2019. (AP Photo/Lim Yong Teck)