In Liverpool's season of what ifs they are the surely the biggest, with the double blow of their serious, campaign-ending injuries within just over three weeks of each other still being felt even now.
Of course Jurgen Klopp and his players should have adjusted to the absences of Virgil van Dijk and Joe Gomez - and then later even Joel Matip - a lot better than they have done.
Miserable records have been set, and Liverpool's presence at Europe's top table - one that it has to be a struggle to get reservations for, because that's football - is now under threat.
Van Dijk and Gomez's knee injuries in October and November respectively have been the toughest blows to Klopp's side, but as the pair were seen in training on Tuesday there was a
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