Brentford boss Thomas Frank values goalkeeper David Raya at £40million.
Tottenham and Manchester United have been heavily linked with Spaniard Raya, who has a year left on his Bees contract having turned down a new one.
The 27-year-old kept his 12th clean sheet of the season in the 1-0 win against Manchester City on Sunday but Frank admits his future probably lies elsewhere.
Frank said: “I think we only have one player for sale. That’s the one that’s been talked about a lot, David. He costs £40m, I think I said.”
Frank himself is on the radar of bigger clubs having guided Brentford to a ninth-placed finish in their second season in the Premier League.
Other players, such as full-backs Rico Henry and Aaron Hickey, will also attract interest this summer.
But Frank added: “We are a selling club. I don’t think that’s a secret. But they need to be crazy high amounts for the players for anyone to leave.
“I’m pretty sure that everyone, including myself, is very happy here at Brentford.”
Ethan Pinnock’s 85th-minute goal saw the Bees became the only club to do the double over City this season.
The champions have bigger fish to fry, however, as they chase an historic treble with the FA Cup final against Manchester United to come next weekend, followed by the Champions League showpiece with Inter Milan on June 10.
Pep Guardiola left the likes of Erling Haaland, John Stones and Ilkay Gundogan on the bench and used the occasion to give 19-year-old Shea Charles his debut as a substitute.
The City boss said: “Shea Charles, against this team with top, top strikers, fast and strong, it’s not the easiest debut.
“At the same time we didn’t play for points. We know him, he trains quite regularly with us. He’s so good, so composed.
“When you can make your debut, after joining the club aged nine, is the biggest compliment for all the managers he had and the trainers and those that take care of him. I’m pretty sure it was a big moment for him.”