Darwin Nunez is missing for Liverpool in the squad to face Brighton today due to a fresh injury worry.
Reports circulated on Thursday that the striker could be facing the rest of January on the sidelines after picking up a fitness problem.
Speaking to reporters on Friday, Klopp looked to allay fears of a lengthy absence but did confirm that Nunez was injured.
"We are waiting for info," he said. "It's not a major [injury] but it kept him out of training, so we'll wait for that."
There was also bad news on Roberto Firmino, who has suffered a setback in his recovery from a calf injury.
"At first it was estimated he would be out for 10-14 days," Klopp said. "Then Bobby felt something again to prolong it. He's not close to team training."
In Nunez's absence, Mohamed Salah could move into a central role, supported by January signing Cody Gakpo and Alex Oxlade-Chamberlain.
Elsewhere, Diogo Jota, Arthur, Luis Diaz and Virgil van Dijk all remain out of the Premier League game.
Confirmed team news
Brighton: Sanchez, Gross, Dunk, Colwill, Estupinan, Caicedo, Mac Allister, March, Lallana, Mitoma, Ferguson
Subs: Lamptey, Webster, Welbeck, Sarmiento, Undav, Steele, Gilmour, van Hecke, Veltman
Liverpool: Alisson, Alexander-Arnold, Matip, Konate, Robertson, Henderson, Fabinho, Thiago, Salah, Gakpo, Oxlade-Chamberlain
Subs: Gomez, Milner, Keita, Jones, Elliott, Tsimikas, Carvalho, Doak, Kelleher.