Liverpool boss Jurgen Klopp won't rule out a late signing.
Klopp was speaking after their 0-0 draw with FA Cup opponents West Ham United.
"It should not be the reason, one game more. Since the last game against West Ham, we have had three or four games more. But we could rest the team that played against Stoke. They had today off and that's good, so we will again have fresh legs against Leicester. That's the good news. We tried all, did all and gave all.
"At the end, we have another game. In this moment it doesn't feel too brilliant, to be honest. But when we go to West Ham, we will see the chance to go into the next round again and we will again try everything. It's an intensive time, that's how it is.
"Hopefully, one player or other will come back from injury in the next few weeks and then we'll have enough players. For what happens in the transfer market, you have to wait in the next 48 hours and we will see if something happens or not."