Some Palace fans will be left scratching their head

[Getty Images]"Legacy ruined", "stunned" and a "soap opera".These are just some of the thoughts on social media from Crystal Palace fans reacting to the news that the club's greatest ever manager, Oliver Glasner, is set to join newly adopted rivals Nottingham Forest.Glasner left the Eagles once his contract expired after a historic two and half seasons at the south London club in which he led them to FA Cup glory, into Europe for the first time in the club's history, won the Community Shield, an