Liverpool players have joined up with their national teams for the second time this season. The Reds have 16 current first-team stars away all over the world over the next 10 days or so. The only nation to feature more than one member of the Liverpool squad – not including loan players – is the Netherlands, who boast three. Virgil van Dijk and Ryan Gravenberch have been two of Liverpool’s best performers under countryman Arne Slot so far, while Cody Gakpo has had his moments, too. Van Dijk was ‘outstanding’ last time out against Crystal Palace, scooping a deserved man of the match award. And a…