George Russell retires from the Canadian Grand Prix after a mechanical problem that ends his race in Montreal. Multiple reports say Russell is involved in a close and heated battle with Mercedes team-mate and championship leader Kimi Antonelli, with the two exchanging positions and battling repeatedly before Russell’s race is cut short. The Independent and F1 both describe Russell expressing frustration and disbelief following a sudden retirement. One report adds that Russell suffers an electrical issue while leading on lap 30, when his car shuts down due to a battery-related problem, stopping his momentum during the contest for position. The Guardian similarly reports that an engine or system failure leads to Russell grounding to a halt after the duel. The Independent further says the retirement affects the championship fight, with Russell slipping behind Antonelli in the standings after the Montreal outcome. Across the accounts, the common elements are the mid-race retirement, the close on-track fight with Antonelli, and the mechanical cause described as electrical or battery failure rather than an on-track collision or penalty.