Thomas Tuchel admits Jude Bellingham must earn England World Cup starting spot
The 22-year-old featured in only four of England's qualifying matches, while Aston Villa's Morgan Rogers appeared in all eight, highlighting the selection challenge facing Tuchel in the number 10 position.
When asked if Bellingham had a battle to secure a place in the starting XI, Tuchel was clear.
"Yes, he does," Tuchel told reporters. "He knows he is one of the starters, but we have 14 or 15 potential starters.
"These roles can always shift, but at present I believe there are 14 or 15 genuine starters and Jude is among them," he added.
England are gearing up for their World Cup campaign in Florida, where they began their warm-up schedule with a 1-0 victory over New Zealand in Tampa on Saturday. Harry Kane scored the only goal.
Bellingham captained the side for the first time during the second half of that match, with Tuchel rotating his lineup in the hot and humid conditions.
Despite the competition for places, Tuchel said he had been encouraged by Bellingham's recent form following an injury.
"He looks sharp in training," the German said. "I think he is at the moment in a sweet spot because he has had his break and has the hunger to be back on the pitch."
Tuchel has stressed squad depth and flexibility ahead of the tournament, indicating that several players are capable of starting while others may be used to influence matches from the bench.
Tuchel would not confirm whether Bellingham is part of his leadership group, but said on Sunday that midfielder Declan Rice will serve as England's vice-captain during the World Cup.