Wolff warns Mercedes may turn Antonelli-Russell battles 'down a notch'

Mercedes boss Toto Wolff has warned the team may turn future battles between Kimi Antonelli and George Russell "down a notch".

Antonelli and Russell staged a thrilling contest at the Canadian Grand Prix on Sunday - a continuation of their fight in the Sprint from the previous day - until a power unit problem for Russell brought the lead duel to an end after 30 laps.