LONDON, Jan 17 : Crystal Palace manager Oliver Glasner lashed out at the club's hierarchy after a 2-1 Premier League defeat at Sunderland on Saturday, saying his squad have been "abandoned completely". Glasner, who led Palace to victory in the FA Cup last season, the first major trophy in their 164-year-old history, said on Friday he would leave at the end of the season. He also confirmed on the eve of the trip to Sunderland that defender Marc Guehi, the captain, was set to join Manchester City