Crystal Palace manager Oliver Glasner has revealed he will leave the club at the end of the season, while captain Marc Guehi is on the verge of completing a £20 million move to Manchester City. Glasner and Guehi's respective contracts at Selhurst Park are up in the summer of 2026 and neither will put pen to paper on fresh terms.At a press conference on Friday, Glasner announced he had told the club of his intention to leave at the end of the season."A decision has already been taken, months ago,” Glasner said. "I had a meeting with Steve [Parish, chairman] in October, the international break. We had a very long talk, and I told him I will not sign a new contract. We agreed at the time it was the best to keep it between us. It's the best that we could do that and keep it confidential for three months. But now it's important to have clarity, and we had a very busy schedule so that's why we didn't want to talk about it. Steve and I want the best for Crystal Palace."I told Steve [that] I’m looking for a new challenge. It’s my feeling after everything. I told him in October it’s nothing to do with the transfer window. I hate if something is written that is not true it’s tough for me to respond. We have a great relationship and always talking what’s best for Palace."Glasner also revealed that Guehi would not be in their matchday squad to face Sunderland on Saturday as he is finalising terms of a £20m switch to Man City, with talks between the two clubs having advanced over the last 24 hours. "His move is at the final stages," Glasner admitted, meaning Guehi's last game for the club was their shock 2-1 defeat to non-league side Macclesfield in the FA Cup.Guehi's status as an impending free agent saw him garner interest from European giants Real Madrid, Barcelona and Bayern Munich. As clubs abroad, they were able to hold discussions with the defender immediately over a summer Bosman deal, while English clubs would have to wait and negotiate with Palace first. Nevertheless, Man City have acted swiftly to beat the queue.Liverpool were extremely close to signing Guehi on deadline day of the summer 2025 window, with the England international having undergone a medical. However, Palace were unable to find a replacement before the window shut and decided to pull the plug on Guehi's exit.Looking for smarter football bets? Get expert previews, data-driven predictions & winning insights with GOAL Tips on Telegram. Join our growing community now!After Ruben Amorim was sacked by Manchester United at the start of January, Glasner immediately was linked as a top contender for the Old Trafford job. Michael Carrick has been named as head coach until the end of the season, with the Red Devils set to resume their search for a long-term appointment in the summer.However, Glasner claimed he has not held talks with any other club and his focus is on completing the season with Palace. "I haven’t spoken to any other club," he said. "I told the players, promised them, I will give my best to get the points record. We will do everything to bring another trophy back to Selhurst Park."We will do our best. For the players alone it’s tough but together it’s possible. I will do everything to bring another trophy to Selhurst and play the best Premier League season ever."Add GOAL.com as a preferred source on Google to see more of our reportingElsewhere on Friday, Palace discovered their Conference League knockout round play-off opponents, being drawn against Bosnian side Zrinjski Mostar. They will return to Premier League action on Saturday away at Sunderland, looking to end a run of nine games without a win in all competitions. The south Londoners remain in the market for squad reinforcements and have already signed Brennan Johnson from Tottenham this month.