Despite criticism from Red Bull team principal Christian Horner as well as Perez and Verstappen however, Tost backed his driver and claimed he had done nothing wrong.
“We said to him on the radio that the Red Bulls were coming and he just went off the track so they could pass easily and Perez followed him. It is not Yuki’s fault.”
“No, he didn’t make a mistake, he did it deliberately," said Tost.
"We said to him the Red Bull’s were coming, that Perez was coming, and he deliberately went to the side so as not to disturb them and not to be in front of them.
“I absolutely don’t understand why Perez went also off the track there. Yuki went to the side as all the drivers do in qualifying to make space for the cars which are coming behind on a qualifying lap.
“He was not on a qualifying lap. It is as easy as that, therefore I don’t understand anything about this.”
After taking a number of new power unit elements for the weekend, Tsunoda already faced a back of the grid penalty and will start from P17 ahead of drivers with the same punishment.
Explaining why Tsunoda had taken to the track in the climactic moments of the session, Tost added: “He gives some tow to Pierre [Gasly].
"It is as easy as that, and we wanted to be in front of Norris, so two things why he was out.”
GPFans is a multi-platform, multi-language brand dedicated to Formula One coverage. We bring you all the ins and outs of the sport, 24/7, everything from up-to-the-minute news and features to the latest viral stories and clips.
We believe that a new generation of exciting, outspoken drivers will make F1 more popular than ever before, and we want to give our users access to as much of their heroes as possible, on and off the track. From Lewis Hamilton to Max Verstappen, Daniel Ricciardo to Sebastian Vettel, we provide in-depth analysis of every every Grand Prix in the season, from Australia to Abu Dhabi.
With Formula One under the new ownership of Liberty Media, how the sport is being covered is evolving, and GPFans will look to be at the heart of this progression into new media, as one of the fastest-growing sites covering the king of motorsports.