With Lorius Karius set to make his first appearance for Newcastle in today's Carabao Cup final against Manchester United due to Nick Pope’s suspension, many fear it is an enforced change which could prove fatal to the Magpies’ chances of springing a Wembley shock.
But the reality is that Karius would be far from the first back-up goalkeeper called in from the cold to deliver his side to unlikely glory.
Here, we look at the top six understudy goalkeepers in the modern era who made a name for themselves, whether in keeping unlikely clean sheets in cup finals to penalty shoot-out heroic, when it mattered most.