The Eagles played out a goalless draw with Sunderland during their most recent top-flight fixture and will hope to continue their unbeaten run against The Hammers who are sat in the relegation zone.
Wharton returns
Glasner first confirmed Adam Wharton and Eddie Nketiah are both fit to return to the squad for tomorrow's game.
"I think Adam is fit enough to start," he said
"He just missed two weeks, 10 days, and then he started his training on the pitch, and he is with us now for a few days.
"Eddie (Nketiah) is a bit different. He missed all the pre-season, but he looked very good in training today and on Wednesday, when we had a really intense session, so let’s see how the game is going, but those players looked very sharp in training."
Benitez has dislocated his little finger
He also confirmed that Ismaila Sarr will also return to training on Sunday and goalkeeper Walter Benitez dislocated a finger in training and will miss at least the next two games.
“He dislocated his little finger, so he needs to rest now. He will miss West Ham and Liverpool. We are hopeful he can come back after the Liverpool game, but the next two games he is very likely to miss.”
Glasner has high praise for his medical team
Finally, Glasner praised his medical team as the likes of Nketiah and Wharton return earlier than expected which is a huge boost for Palace ahead of the clash.
“Sometimes as a striker, after 60 or 70 minutes, you are very exhausted and you have to work a lot, and then you bring in fresh legs which makes it difficult for the defenders, because the defenders get fatigue as well.
“It’s good to have Eddie back, but not just for his reason – we always want to have every player available and fit, so why we’re always working hard.
“Big credit to our medical department, to the rehab guys, and of course to the players as well. They worked really hard – it started with Daichi Kamada and also now with Adam and Eddie.
"Also, Ismaïla will start to train with us on Sunday after the West Ham game.
“Everyone is coming back earlier than expected, so credit to all of them.”