The Blades have used 26 senior talents in the Premier League this term – the exact same number that they’d included after 35 matches last campaign.
That figure is about average for top flight side, but regardless of whether or not they get a run out, the club still needs to fork out on weekly wages – and in today's modern game, that’s by no means a small payout.
But which players are costing Premier League clubs to most to watch on from the sidelines week after week?
BettingOdds.com have crunched the numbers to take a closer look at which talents have established themselves as the most expensive unused substitutes in each top flight squad this term.
Click and scroll through their findings below...
1. Arsenal - Willian
Games as an unused substitute: 6 Weekly Wage: £192,308 Amount earned as an unused substitute: £1.15m (Photo by Alex Burstow/Getty Images) Photo: Alex Burstow
2. Aston Villa - Bjorn Engels
Games as an unused substitute: 22 Weekly Wage: £55,000 Amount earned as an unused substitute: £1.21m (Photo by Laurence Griffiths/Getty Images) Photo: Laurence Griffiths
3. Brighton - Davy Propper
Games as an unused substitute: 14 Weekly Wage: £45,000 Amount earned as an unused substitute: £630,000 (Photo by Clive Brunskill/Getty Images) Photo: Clive Brunskill
4. Burnley - Dale Stephens
Games as an unused substitute: 18 Weekly Wage: £35,000 Amount earned as an unused substitute: £630,000 (Photo by Alex Pantling/Getty Images) Photo: Alex Pantling