Sebastian Vettel's body language and reactions to Ferrari's struggles in 2019 have left former team-mate Mark Webber "confused". Vettel entered 2019 as a red-hot title favourite, but is yet to taste victory six races into a campaign dominated by Mercedes.
Ferrari's impressive pre-season pace may have put a fifth title in Vettel's thoughts, but he enters this week's Canadian Grand Prix 55 points behind rival Lewis Hamilton, who has won four races.
Vettel may hope that a return to Circuit Gilles Villeneuve can kickstart his season, given he won from pole in Montreal 12 months ago and the SF90's mighty engine should come to the fore.
Webber and Vettel had an intense rivalry while team-mates at Red Bull, but Vettel has often reacted with begrudging acceptance at Mercedes' dominance this year.