MIAMI :Four times Formula One world champion Max Verstappen was withdrawn from scheduled media commitments at the Miami Grand Prix on Thursday as the Red Bull driver awaited the birth of his first child. The 27-year-old's partner is Kelly Piquet, daughter of Brazil's triple world champion Nelson, who already has a daughter from a previous relationship with Russian former F1 driver Daniil Kvyat. A team spokesman said all was well and Verstappen "will attend track tomorrow for the race weekend."