Liverpool manager Arne Slot is preparing to welcome the first wave of senior players for pre-season duty. They will descend upon the red half of Merseyside once more as preparations for the new season get fully underway. Both Slot and his new group of players will undoubtedly be anxious about what lies ahead, but there will also be plenty of excitement. There is, however, still a long list of talented players who will not report back for club duty for quite some time. That is because of their international commitments, with several Liverpool stars currently representing their nations. Senior L…