"From the first laps Vettel was too aggressive and then he got nervous," F1 legend Fittipaldi told La Gazzetta dello Sport.
"But technically Ferrari has more chances to win and in fact in the last three or four grands prix Mercedes has understood how much Ferrari has improved. Toto Wolff was very surprised by the performance of the Scuderia.
"This championship is very balanced, even with a Red Bull that is very strong."
The calendar continues this weekend with the Austrian Grand Prix.