Red Bull boss Helmut Marko has been discussing Max Verstappen's chances at the upcoming Canadian Grand Prix.
The three-time world champion finished an unusually low sixth at the Monaco Grand Prix last time out, struggling to match the likes of Ferrari and McLaren in his RB20.
After Verstappen's struggles in Monaco, namely with kerbs and the bumpy nature of the circuit, Red Bull have no doubt been working hard to identify how they can avoid similar issues in Canada this weekend.
However, Red Bull boss Marko has warned that the team and three-time world champion could still face a difficult weekend, even if they get to the bottom of their issues.
"We are optimistic - I think we will find out on our own why the simulator data is incorrect,” Marko wrote in a speedweek.com column. "But Montreal can still be tough for us.”