Red Bull team principal Christian Horner says Max Verstappen put more effort in than in previous years to secure a fourth drivers’ championship under pressure from rivals.

Verstappen finished fifth in the Las Vegas Grand Prix to seal his fourth consecutive title, and did so after battling increasingly stiff competition from McLaren’s Lando Norris season. Horner said the change in dynamic as Red Bull made another dominant start to the year only to see McLaren’s threat gradually rise resulted in Verstappen upping his game even further,

“This was, together with 2021, the toughest,” Horner said. “This one, we started the season very strongly but by Miami it was clear McLaren had made a significant step.