Thomas Tuchel insisted Armando Broja is not for sale “at the moment” as he detailed a knock sustained by the Chelsea striker in pre-season.
Chelsea academy graduate Broja spent last season out on loan at Southampton, scoring six Premier League goals along with three more in cup competitions.
The 20-year-old is said to be a top transfer target for multiple Premier League clubs ahead of the new season.
Newcastle United have been linked, while reports on Saturday claimed West Ham had launched a £30million bid.
However, head coach Tuchel, speaking from Chelsea’s pre-season camp in the United States, ruled out a departure as he suggested Broja’s focus was on becoming a first-team player at Stamford Bridge.
His hopes of impressing before the start of the new season have been hampered, though, following an ankle issue in training.
“Armando is our player first of all, and we have at the moment no interest in selling him,” Tuchel said.
“He is here to make an impression after he was on loan in Southampton. It’s good there’s interest; it shows us that there is a talent and potential.
“Armando is in the position to impress and to become a Chelsea player. When? Nobody knows, but hopefully as soon as possible.
“He got injured. It’s never nice because the young players should normally make an impression during pre-season from the very first minute. Now we have a little delay in that.”
Outlining the nature of the physical blow sustained by Broja, Tuchel said: “He had a little accident yesterday in training with ball control and landed in a funny way on his ankle and on his Achilles.
“So, he’s in pain, but nothing major. We did all the examinations, and it’s just pain, and he’s lucky that he did not get injured, and we are lucky and happy that he did not injure himself.
“So, he will not be in training today [Friday]; he’s in treatment.”