"I think by the time we get to Barcelona he'll be back in the car - but I'm trying to guess the future, so if that doesn't happen, don't crucify me!
"But I was 99% sure that Nico [Hulkenberg] would be in the car for both Silverstone races and now I'm 99% sure that Checo will be in the car for Spain."
Szafnauer claims his team went through the appropriate channels regarding the possibility of getting Perez back in the car as soon as possible, including Eurofins Scientific, a Luxembourg-based company employed by F1 to conduct all tests, and they did not ignore any advice.
"We consulted a lot of experts, including a lab that we use for all of our staff at Silverstone, consulted with the Eurofins experts as well," added Szafnauer.
"You've got to remember this coronavirus is a novel virus, which means people don't know much about it, and the experts gave us such a big range of when Checo would pass negative that it was worthwhile doing.
"They gave us a range of one week to four to five weeks. They said any time in that range he could test negative.
"It was all dependent on when he was first infected, which nobody could predict, so it made sense for us to try to get our contracted normal driver in as opposed to a stand-in.
"I think we did absolutely the right thing to continue to test him to see what was going to happen."
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.