Palace have endured a seven-match winless spell across all competitions, and have picked up just two wins across 10 top-flight Selhurst Park matches so far.
The Eagles will aim to bounce back against Villa in what will be a tough test against a side who are considered title challengers this season.
Richards returns
Glasner first confirmed that Chris Richards will return to the side this week after he picked up an injury in the Carabao Cup quarter-final at Arsenal just before Christmas.
"Let's talk about the good news, Chris Richards is back. He is not able to start, but he will be on the bench.
"In his first training today, he was confident. He couldn't wear a boot for the last two weeks, and it would have been too risky to start him.
"But it's good to have him back as an option. Nobody else is back (for Villa) and nobody else will be back for the Macclesfield game.
"The situation hasn't really got better, but the players looked good, to be honest. It was a good session today."
Clyne and Lerma out
Next, as Richards returns, Glasner confirmed that two other stars will not return to face Villa but could be back in contention over the next few weeks.
"Jefferson Lerma is out because of the concussion. He will follow the concussion protocol and be available for the game against Sunderland.
"Nathaniel Clyne has a minor abductor injury and the plan is now for him to return for Chelsea. He'll miss the games this week and it looks like Sunderland as well. That means minus two from the last game."
Glasner to replace Amorim?
Manchester United let go of manager Ruben Amorim on Monday morning after his outburst following the 1-1 draw with Leeds United. Several top managers including Eddie Howe, Enzo Maresca and even Glasner have been linked to be his replacement. When asked if he would consider the job, Glasner gave a blunt response.
"I am Crystal Palace manager, and it makes no sense for you to ask me any more questions about it."