Jamal Blackman hopes the Blades can do themselves justice at the King Power Stadium on Friday night.
Speaking ahead of the fifth round tie, the Chelsea loanee remarked: "Leicester are a great team, who won the Premier League a couple of years ago, but obviously this is a great opportunity for us to go there with nothing to lose.
"You want to play against the best players, it gives you a chance to show what you can do and whoever plays will be looking to do so."
Blackman added: "The FA Cup is great, it gives everyone a chance to make a name for themselves, especially when you are the underdog.
"If you have a winning mentality, anything is possible, Leicester have proved that and look where it has taken them in recent seasons."