Liverpool youngsters will be desperate to impress Arne Slot as he ramps up pre-season preparations. Slot has been working with the young Liverpool players as he waits for his bigger stars to arrive back from their holidays. For a lot of those prospects, it will be the only time they are afforded the opportunity to work with the new Liverpool head coach. However, others will genuinely feel that they can use these few weeks without most of the first-team squad to lay down a marker for the season ahead. One of the areas where Slot will perhaps be most intrigued is at goalkeeper, where he has a fe…