Norwich want a deal worth £3m to sell winger Sergi Canos.
West London Sport revealed last week that Brentford had made an approach to sign the 19-year-old.
The Bees are yet to make a formal offer and Canos is also wanted by Leeds United and Bristol City.
Canos impressed last season while on loan from Liverpool at Brentford, who wanted to sign him in the summer.
He opted for a move to Norwich but has struggled to establish himself as a first-team player at Carrow Road.
Canaries boss Alex Neil indicated last week that the East Anglian club would be prepared to sell Canos for the right price.