It is a vital role, even if it is not the most glamorous. So which 20 Liverpool players have warmed up the bench more often than others in the Premier League?
Throughout the Premier League era, the role of the substitute has become increasingly important.
Clubs can now make five changes in a single game, with the traditional five-man bench expanded to nine to accommodate more options.
This will increase the opportunities for substitutes, but so will the number of unused players over the course of 90 minutes.
Since the Premier League began in 1992, many have carved a niche for themselves as perennial bench warmers for Liverpool, most of whom, unsurprisingly, are goalkeepers.
But there are also some interesting names in the club’s top 20, including nine from the Jurgen Klopp era and one who just made the cut.
You have 2 minutes to name all 20. Can you get them all?
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