The Dutchman is fourth in the championship and only a single point behind Sebastian Vettel. His podium finish in Australia has been the standout moment so far of his season although he narrowly missed out on another in Bahrain after Charles Leclerc's power unit issue.
Verstappen has managed to outperform at least one Ferrari at every race this season despite the apparent gap in performance between the two teams.
The Austrian also insisted that the Red Bull driver was the only one on the grid who had not made an error so far this season, adding that Verstappen is ready to win the world championship.
“Hamilton, Bottas, Vettel and Leclerc have had ups and downs,” he told Auto Bild.
“Only Max was flawless and always got the maximum out of the car — sometimes even more.
“He is absolutely ready for the title. In Barcelona, we now have to prove that we are too.”