"However, he is a very quick driver and he will help us move the team forward. I know Yuki, he is a competitive guy and showed what he can do in F2, that’s why he was promoted to F1 after just one year.
"We will work together to achieve that. He lacks experience, so it won’t always be easy for him, but I think he is talented and it will also be up to me and the team to lead the way."
Last year 25-year-old Gasly made a name for himself when he won his maiden F1 race by taking the chequered flag in the Italian Grand Prix.
It was only the team's second victory since it entered F1 in 2006 after Sebastian Vettel's win two years later, also at Monza.
Despite his new-found responsibility, Gasly remains adamant his approach to driving will remain unchanged.
"His [Tsunoda's] arrival doesn’t really change my approach, which will be the same as last year, when we got the most out of what we had to work with at pretty much all the grand prix, apart from one or two," added Gasly.
"So, we must keep going with the same philosophy, as I really believe last year was the team’s best in terms of the way it worked, the development, the performance and in the way it managed the race weekends.
"I think that goes for me, too, and we just have to keep going like this to try and do a little bit better than we did last year.”
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