If Real Madrid and Liverpool have grown somewhat uncomfortably familiar with the sight of each other in recent years, there's one aspect with which the Spaniards will be largely unaccustomed.
And the Reds will hope the element of surprise can work in their favour this evening when they once again lock swords with their increasingly regular Champions League rivals.
For the fourth time in six seasons, Liverpool and Real Madrid face off in Europe's premier knockout competition with Jurgen Klopp's side having faltered on each of the previous three occasions.