Liverpool boss Jurgen Klopp admits he has concerns about Dominik Szoboszlai's hamstring injury.
The midfielder is struggling in his recovery.
"I said [in Friday's press conference] if you ask Dom he plays against Brentford," Klopp said. "That is the problem with the injury. It is a muscle injury with a slight tendon involvement.
"The muscle is not big but the tendon is the problem and the tendon is not painful which means the player is like: 'I'm fine, let's go.' And he is obviously not used to getting injured with this kind of thing.
"He had long-term problems at Salzburg but pretty much since then he could play since then. He came to Leipzig with a problem but could pretty much play all the time after that. He is not the most patient person. We don't know [about the final].
"If you ask him he plays the final definitely but I don't know. He will see. He is running outside. Some players I see running outside and i think ok they are back and then it can still take a while. We have to see."