"Now I'm back in with the boys, it's a completely different ball game - it's a lot tougher, quicker and I've struggled the last two days, so I'm really tired at the moment," said Gerrard earlier this month.
"But I'm back in full training and looking forward to being involved with the lads in games in the coming weeks."
Teenagers Danny Wilson, John Flanagan and Jack Robinson are also expected to feature in a much-changed side from the one on duty at White Hart Lane, where Liverpool finished with nine men after Charlie Adam and Martin Skrtel were sent off.
Both players will be suspended for the trip to the south coast as a result.
Brighton are currently third in the Championship after being promoted from the third tier last season, and manager Gus Poyet is confident his players can give a good account of themselves during a hectic 48 hours which also sees Brighton entertain Leeds on Friday.
"I need to manage the squad and the team the right way, to have a decent team against Liverpool and a very, very good team against Leeds on Friday but it's going to be tough," said Poyet.
Full-back Marcos Painter will miss the tie through suspension following his sending off for two bookable offences during the 1-0 defeat to Leicester last Saturday.
PTI