Playing in the most specialised position on the pitch, goalkeepers are often the difference between winning and losing.
But what happens when a goalkeeper is sent off, forced off with an injury with no specialist stopper on the bench or when either occurs after all three substitutions have been made?
With that in mind, we have collated the most memorable instances of outfield players going in goal for you to enjoy on the Premier League's YouTube channel.
From Phil Jagielka famously keeping out Arsenal in a memorable win for Sheffield United to Vinnie Jones pulling off a string of stunning saves against Newcastle United, watch the best of the action below.