Christopher Nkunku's former PSG youth coach has recalled working with the new Chelsea signing.

Nkunku came through the system at PSG before leaving for RB Leipzig.

The striker has now arrived at Chelsea and his old coach Cedric Cattenoy told the Blues website: "It was fantastic to coach him.

"He was a very nice kid, always very motivated, always very passionate about football, always very respectful. He had good support from his family, which is always important for a young player.

"At that age, he was quiet but quickly found his place in the group. All the players at Paris Saint-Germain liked him; he had a good personality as well as being a good player. And it's easy to be part of the group when you are a player like Christopher.

"It was easy to see his talent. He developed physically later than many of his teammates, but he could compensate for that with his technique and vision for the game. His other physical attributes were very strong; he was quick and had very good endurance. He had all the skills and a strong mentality, a strong character, that would help reach a very high level.

"I remember we played the Paris Cup final at Clairefontaine against Brittany, a good amateur club with very strong players. It rained all day and the pitch, even though the pitches at Clairefontaine are excellent, was flooded. It was really tough to play, but Christopher was still able to show his qualities.

"The game ended 1-1 but we won on penalties. I believe that was Christopher's first trophy with Paris Saint-Germain and you could see the happiness in his eyes. I think it was an important experience, a first big success for him."