Arne Slot refused to offer any firm diagnosis on the severity of Mohamed Salah’s concerning muscular injury, although the Liverpool boss did predict that the supreme professional would require the “minimum time” to recover. Salah’s final act on the Anfield turf may very well have been to applaud all four sides of the ground while making his way over the sideline. The club’s third all-time top scorer pulled up against Crystal Palace after attempting a backheel shortly before the hour mark. There was a wry smile on Salah’s face as he clutched the back of his left leg which gave way to more of a circumspect look by the time he had left the field. Every player picking up a fitness issue at this stage of a World Cup year is going to fret. Yet for Salah, there is also the added dimension of this being his final season at Liverpool . What Injury Does Mohamed Salah Have? Mohamed Salah (right) limped off injured.…