Hirst is only 17 years old, but his performances in Wednesday’s development squad have seriously caught the eye.
The Star says that West Ham United, Newcastle United, Leeds United and Chelsea are all interested in the youngster.
However, Carvalhal has previously spoken of his admiration for the young striker and it appears that he would like to keep hold of the starlet.
“It’s in the hands of the chairman. I gave my opinion about the boy in September/October," he said.
“George is a player that’s in the academy so I must be careful to talk about academy boys. You have to control expectations with a boy.”
According to the Star, Wednesday are already preparing to offer Hirst a contract to ensure that the stays at Hillsborough.
Hirst is currently on youth-terms, but Wednesday are in discussions to offer him a professional deal.
Hirst is yet to make his competitive debut for Wednesday’s first-team, but he is regarded as one of the most talented players in their youth system.
It would be a blow for the Owls to lose a prospect of such potential at such an early age, and it seems that Wednesday will be doing everything within their power to ensure that he remains with them for the long term.