Liverpool are locked in a nervous wait to see whether they are about to make their first signing of the summer. The Reds have taken a considered approach to this year’s window, preferring to sit back and take their time over doing business. There are plenty of reasons and indeed plenty of merits behind taking this stance. It has given Arne Slot the chance to get a proper look at the Liverpool squad without complicating things with new arrivals, for example. But one negative has been that it now puts pressure on Liverpool to get what they need done over the next few weeks. With time running out…