Argentine midfielder Giovanni Lo Celso, on loan at Spurs from Real Betis with an option to buy in June, is convincing Jose Mourinho he's worth it.
He played his best game so far in the 2-1 win over Norwich on Wednesday.
"Giovanni is improving game after game and today he was fantastic in every way," said the coach. "I think he's adapting really well to the Premier League. He can play in various positions, gives us a lot of quality, passes, vision and is improving in his attacking play and intensity."
The fee could reach 70 million euros if Spurs reach the Champions League by finishng in the top four.