According to reports, Palace is willing to let Guehi go as part of a major squad overhaul. The team's new manager, Oliver Glasner, wants to rebuild the team and raise around £130 million to do so.
Chelsea is interested in re-signing Guehi, who is an England international. Other teams, including Tottenham and Newcastle, are also keen on him.
Guehi is not the only player who may leave Palace in the summer. Eberechi Eze, an attacking midfielder, has a £60 million release clause in his contract, which could lead to his departure as well.