Borussia Monchengladbach playmaker Thorgan Hazard has backed two Chelsea youngsters to make an impact in the Premier League.
The former Blues player and brother of Eden feels that Gladbach team-mate Andreas Christensen, who is on loan at the club, and Charly Musonda are players with undeniable potential.
Before making a £5.9 million permanent switch to the Bundesliga outfit, Hazard was part of a successful Chelsea youth team that included Musonda and Christensen.
However, with the current system of the English title chasers loaning out players once they are ready for first-team football, there's been talk of who may return and who may leave permanently.
"When he arrived everybody in the team and at the club were saying 'wow', what a defender, what a player," Thorgan told Goal of Christensen.
"He can play football, he is strong, he is fast, he is intelligent and so he has helped us a lot and helped us get Champions League qualification.
"I think he has a great future and he can play at a top, top level at a top, top team. When a 19-year-old comes into defence like this and does this and I am very confident about his future.
The Belgian added: "Charly is a friend. He decided to go on loan to Betis and the first year he was fantastic for Charly.
"So after he decided to return to Chelsea and he decided to take a place in the squad so I know Charly and I think he is a winner. He will fight for that and I hope he can do this [play for Chelsea].
"I think he knows also that there are very good players in his position, so he needs to fight very, very hard. My brother, Willian and Pedro and it is a lot of players."