Palace have taken Guessand on-loan for the rest of the season with an option to buy. The FA Cup holders have paid £2m for the loan to the end of the campaign.
Guessand told Palace TV: “I’m really excited, really excited to be here. I was waiting for this moment for a very long time.
“I’m excited to play with my new teammates and fight with them, because we have some objectives, some targets, and I think with the quality we have, we can achieve something.
“I've seen a lot of qualities in this team. I've seen them playing. I think my first game in the (Premier) League was against Crystal Palace, and I've seen the quality of this team.
“Every player has this mentality to win, and the Manager as well. I spoke with him and the way he plays, the way he gets the best from his players, this is what I really like.
“I want to improve – I want to get better and better every day – so there are lots of reasons to come here.”