Liverpool manager Arne Slot has confirmed winger Mohamed Salah should be fit enough to return in Friday’s trip to Aston Villa, although only for a short appearance off the bench. Salah picked up a muscle problem late in April which, given the timing, threatened to keep him on the sidelines and rob him of the chance to say goodbye to Liverpool ahead of his summer departure, but the Reds eventually confirmed they expected to see Salah back in action before the season comes to a close. Slot has now revealed that Salah’s comeback will begin on Friday, when a cameo off the bench should help him build up enough fitness for an Anfield farewell next week. “Mo will be available tomorrow but only for a few minutes,” Slot confirmed. “Hopefully he can come in.” Slot also paid tribute to left back Andy Robertson—“a great human being”—ahead of his farewell next week, but refused to reveal whether Liverpool fans will have more players to say goodbye to.…