"The mood is very, very good indeed, and it suggests to me that the players are really looking forward to the game at the weekend," he says.
"The motivation has been good and they have worked ever so hard. I am encouraged by what I am seeing.
"The tempo of the training has been as close to match practice as you are going to get, which is good news.
"You want that so it becomes second nature - and the players are really putting it in at the moment."
Glenn says that reports of a gastritis epidemic at the club have been exaggerated, insisting: "I expect everyone to report in and get some strength in their legs, then we have two good football days ahead of us on Thursday and Friday in preparation for the game.
"We know there are no easy games in the Premiership but it is one we are looking forward to."
As for the story this week claiming that he was looking to bring Tony Adams out of retirement, he stresses: "I just find it incredible that these stories materialise at all and I expect Tony feels a bit awkward about it himself.
"Personally I have had no contact with big Tony for a couple of years now - more than that, in fact - since we worked together when he was in the England squad.
"He is someone I have known an awful long time, and for whom I have the greatest admiration. You can pick a handful of players in that category, and he is one of those.
"He has had a fantastic career and he will be the first to admit in his life away from football he has had his low moments.
"But the important thing is that the manner in which he has come back has been a credit to him as a human being.
"I think an awful lot of him as a person, but where this story materialised from I haven't got a clue. These journalists take a flyer on whispers and rumours, and it is one of those that has no credence.
"Tony is a fantastic person, and he has got his head down studying at the moment - that's all there is to say."