Brighton boss Roberto de Zerbi remained coy on Solly March's injury after defeat at home to Everton.
March broke down after coming on at halftime. He had benched the previous two games with an unspecified injury.
De Zerbi said: We are enduring a very tough period about injury.
I don't want to speak about this because we are ready and we could win the game today.
I don't know. Solly didn't play in the first XI for a problem."