With Alexander-Arnold not in the squad, Bayer Leverkusen’s Jarell Quansah made his England debut at right-back against Albania in Tirana.
“Of course I have a lot of trust in Jarell,” Tuchel said.
“I see his talent, but I see the package. He is tall, he is fast, he is strong in build-up. He is strong in the air.
“He plays every minute for Leverkusen since the Under-21 Euros, so he is at the moment a tiny bit ahead.”
Seasoned players like Luke Shaw, Harry Maguire and Kyle Walker are also on the fringes of the squad, while Morgan Gibbs-White, Myles Lewis-Skelly and Ruben Loftus-Cheek were dropped in the latest squad.
Tuchel also resisted the temptation to call up forward Danny Welbeck, who has scored six goals in 11 Premier League matches for Brighton this season.
Asked whether he is going to make a lot of phone calls, Tuchel said: “Yeah, and I hate phone calls.
“Better on FaceTime. Then I see the expression, at least, and get a feeling for the person. Or I need to visit them, visit training, training grounds.
“We can do group visits. We can do Jude [Bellingham] and Trent. And visit the clubs. And some of them we will call. Let’s see.
“Listen, we’ve just finished this camp and I think it’s important that I reach out to everyone, even to the guys we didn’t pick so regularly to tell them where they are and give them honest feedback.”