After a week of disappointing news for Oliver Glasner, he’s been handed a massive fitness boost for Crystal Palace. This week has been rather turbulent for Oliver Glasner as he’s had to watch on as two players who have played every minute of his reign so far, picked up injuries. The two new worries are substantial blows for Crystal Palace at a pivotal point in the season, which Glasner was helpless to prevent as they both occurred on international duty. Sam Johnstone went down first, being withdrawn from the England squad after an injury in training. Now he’s been confirmed to have a four-mont…