Personal terms have been agreed, and the transfer is expected to be completed by the end of the weekend.
Palace manager Oliver Glasner has confirmed Guehi is leaving the club and confirms his own departure from Selhurst at the end of the season.
Glasner hit out at the club’s owners after their 2-1 Premier League defeat at Sunderland.
He says he doesn’t care if he loses his job before the end of the season.