Ferrari believe their Red Bull rivals now only have a "negligible" advantage in straight line speed after making improvements to their car in recent weeks.
The two teams have produced by far the best cars on the grid this season, and have been a long way clear of anyone else in terms of performance. Ferrari's F1-75 has generally had the edge in the corners, but Red Bull have made up for that with the straight line speed of their RB18.
So while Charles Leclerc and Carlos Sainz have been nippier in the slower sections of a circuit, Max Verstappen and Sergio Perez have generally been able to keep them at bay with raw power down the straights. But that might not be the case any more, according to Mattia Binotto.