Jurgen Klopp's focus is only on Liverpool's "very, very important football game" against Manchester United, rather than any personal duel with Ralf Rangnick.

Klopp welcomes Rangnick and United to Anfield on Tuesday with the home side still in pursuit of an unprecedented quadruple.

This is the latest in a series of tricky fixtures, though, and Klopp knows how tough Rangnick might make it for his team.

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