Oliver Glasner has confirmed that he is leaving Crystal Palace at the end of the season, yet he could still remain in the Premier League.The Austrian confirmed at his pre-match press conference ahead of the Eagles taking on Sunderland that he would be departing south London.Glasner’s time as Palace manager will come to an end in MayAFPAt the same time, he also confirmed that Marc Guehi was going to leave.talkSPORT understands that the England international is set to join Manchester City in a deal worth close to £30million.It consists of £20m, plus add-ons, and Guehi is set to earn around £300,000 per week.On his departure, Glasner confirmed he told Steve Parish in October that he wouldn’t be signing a new deal, with his current contract to expire at the end of this season.And in a bombshell press conference, the Austrian confirmed he was leaving.He said: “A decision has already been taken, months ago. I had a meeting with Steve 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 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.”talkSPORT understands that he chose to reveal this information now due to Guehi’s move to City being close to completion.Guehi is also on the move, making this a bad day to be a Crystal Palace fanGettyAnd with the news now out there, he remains a major contender to take the Manchester United job.Ruben Amorim was sacked earlier this month after a total breakdown behind the scenes, and Michael Carrick has been made interim until the end of the season.Even before Amorim’s fate was sealed, Glasner had been heavily linked with the Old Trafford gig and was as short as 6/1 with talkSPORT BET earlier in January to take over at the Red Devils.However, talkSPORT’s Chief Football Correspondent Alex Crook doesn’t think it is cut and dry that he takes the Man United job.While breaking the news on-air, Crook suggested that Glasner could return to Germany.“The timing is really interesting,” Crook said.Glasner has transformed Palace into a top side but lack of investment has exposed his squad this yearGetty“He’s on Manchester United‘s shortlist of potential candidates. They are looking for Premier League experience, but will he operate with Jason Wilcox and Omar Berrada calling the shots? I am not entirely convinced.“People close to Glasner have suggested to me that maybe a return to Germany is most likely.“He’ll be in demand because he’s done wonders at Crystal Palace.”And on Glasner’s departure, Crook said: “This was always a fear for Crystal Palace fans.“I reported in September that the Palace hierarchy weren’t confident that Oliver Glasner would extend his stay beyond the end of the season.GettyThe Austrian is a chance to remain in the Premier League beyond this season, but it won’t be at Selhurst Park[/caption]“I think the timing of his announcement is interesting because it came ten minutes after we were reporting on talkSPORT.com that Marc Guehi is on his way to Manchester City.“So, to lose your manager and your FA Cup-winning centre-back on the same day is a huge blow for Crystal Palace, and this is a by-product of the fact they weren’t ambitious enough in the summer to build on that FA Cup success as they didn’t really strengthen the squad.“It’s a shame for Crystal Palace because off the back of a miraculous season, they lost their place in the Europa League because of a paperwork error.”Glasner’s body of workWhile Amorim’s back three formation at Man United never quite worked out, Glasner’s 3-4-2-1 is a tried and tested method that has delivered two major trophies and two minor ones.The standout achievements in the 51-year-old’s managerial career are winning the Europa League with Eintracht Frankfurt and claiming the FA Cup with Palace.In the process, he took two unfancied sides to glory and created days that their fans will never forget.Glasner led Palace to its most famous moment at Wembley last seasonGettyIt’s hard to overstate just how important those victories in major cups were for the Eagles and the German side, and what is clear from any game Palace play is that, tactically, they always know exactly what they are doing.It certainly feels as if Man United could do a lot worse than going for Glasner.And he will be available, while other contenders might not be, so it could be a case of watch this space.