Liverpool are set to field a much-rotated side for their final Europa League group game against Union Saint-Gilloise. The trip to Belgium could have been an awkward-looking end to the group for Liverpool. But having already qualified for the last-16 as group winners, there’s nothing riding on it for the Reds. As a result, it will be very interesting to see who Jurgen Klopp puts out. With Manchester United coming to Anfield on Sunday – and a Carabao Cup quarter-final hot on the heels of that – it’s the perfect chance for a rest. With that in mind, it feels likely that we’ll see one or two young…