Tottenham youngster Dele Alli is worth at least £50m, manager Mauricio Pochettino has insisted.
The Spurs boss has heaped praise on the 20-year-old, who has scored three goals in his last two games as he begins to recapture his best form from last season.
Tottenham signed Alli for £5m from League One side MK Dons in January 2015, and Pochettino believes he has become one of the best midfielders in the world within two years.
"Yes [he is a £50m player], why not? Today Dele Alli is showing a quality, a talent that it's difficult to find in Europe at 20 years old," Pochettino said.
"There's no doubt he is and will be one of the best players in England in the next 10, 12 years. And England represents Europe, and maybe the world too.
"The Premier League is the toughest and best competition in the world, and if you are one of the best in England you are one of the best in Europe.
"In one year and a half we've talked a lot, and we can see how he is as a person, and that's important; how he's growing up, not only in football. For different reasons that crossed different problems, but he's improved a lot in his behaviour, in his game, in football.
"Now it's a big challenge for all the opponents to stop Dele Alli. He's said he wants success here, he's very happy here, and there's no doubt that he wants to win titles here."
Alli recently signed a new long-term contract until 2022 and insisted he wants to stay at Tottenham and win titles.
Pochettino said: "I am very honest in that situation. Sometimes he will joke in the dressing room or on the pitch, but he's very serious. Always I hear him say many times 'I want to succeed here, I want to win trophies here'."