The Eagles return to Premier League action following a lengthy break from top-flight matches, with our previous game the win over Ipswich Town last month.
Richards played the full 90 minutes in our win over Fulham, but will be forced to miss the trip to the south coast. However, he is the only fresh injury concern for the Palace manager.
Glasner said of the defender: "We will miss **Chris Richards** tomorrow. He is struggling a bit with his calf.
"It doesn’t look very serious, so we expect him against Brighton at the weekend. But tomorrow is a little bit early.
“Everyone else is fit and available.”
**Will Hughes** missed the quarter-final victory with illness, but is suspended for tomorrow's fixture at St. Mary's Stadium. Chadi Riad and Cheick Doucouré remain long-term absentees.
Glasner also provided a short update on **Jean-Philippe Mateta** following his return to action against Fulham.
"JP is fine," he added. "He had 65 minutes at the weekend and he looks like he is getting back into his rhythm. He probably trained a little bit better this week, than last week."