Chelsea signing Christopher Nkunku admits he has done his homework on manager Mauricio Pochettino.

Nkunku has arrived from RB Leipzig, though was able to sound out his former PSG teammates about working with Pochettino.

“I have not had a chance to speak to him, not yet," he told Chelsea's official website.

“I spoke to some of my friends from Paris about him a little bit. I speak about him a little bit with some of the players.

"They told me that he's a very good coach and I'm excited to work with him."