Lewis Hamilton will meet his 'biggest challenge' in Charles Leclerc at Ferrari, David Coulthard warns, as he insists the Brit's new team-mate is 'brilliantly fast' and a 'champion in the making'
Lewis Hamilton stunned Mercedes and the sport earlier this month by agreeing a bombshell £40million move to Ferrari from 2025, calling an end to his 13-year stay with the Silver Arrows.