"Glenn is the first thing on our minds and everything else is a bit insignificant at the moment," he emphasises.
"The most important thing is him, his health and his family, and all our thoughts are with them.
"The man is not well, but the thing is we hear he is stable, being well looked after, and in the right place - obviously."
From a professional standpoint, however, Roger knows only too well that Glenn would want the staff to keep the hope of staying up alive this weekend, and he adds:
"We are on a run of only one defeat in eight, and we have got 15 points in that time.
"We have got to continue that; I'm afraid we had one blip, and it was the most important of the lot, but we have got to make up for that this weekend.
"We will go to Manchester City with a very positive attitude about getting three points there."
Roger expects everyone, players and staff alike, to produce a huge effort in the most difficult of circumstances, and he adds:
"We all have to share more responsibility, absolutely, and we want to win for Glenn - we are doing it for him."
As for the reserve game at Fulham, West Ham won 4-3 and Roger says:
"We restricted them to three chances, and they scored with all of them.
"We could have had a hatful, but we played really well and it was a pleasing performance."
Shaun Byrne opened the scoring after a good move from the left; Daryl McMahon produced a good cross to the far post where Clive Delaney's initial header was followed up by Shaun to score the first of a brace.
Richard Garcia set up Greg Pearson who made it 2-0, but two minutes later it was back to 2-1 before Fulham equalised.
Richard beat the offside trap to set up Shaun in a one on one situation for 3-2, but just before full time Fulham equalised.
However, Richard Garcia earned and then took a penalty in injury time which Kevin Keen slotted home on the rebound after an initial save by Edwin van der Sar.
TEAM: Bywater, Delaney, Winterburn, Noble, Breen, Dailly, Keen, Byrne, Garcia, McMahon [McLenehan 70], Pearson [Akinsete 70].
Subs: Forde, Ward, Ferdinand A, Tattam.
Meanwhile, Don Hutchison and Christian Dailly have been named in the Scotland squad for their Safeway International Challenge Match against the Austria at Hampden Park on Wednesday, 30th April.