What is wrong with his voice & why doesn't he take some time off to recover? What a dolt. He got sick, worked sick for 2 weeks or more. Time went on. His voice seemed to recover for a few days, but not anymore. He's just running himself into the ground; that is no way to be. Not cool. Not attractive, either. There are a lot of people in their 70s and they don't have old man voice.
Maybe he should do vocal warm-ups before the show. I used to work on the phones all day and sometimes I had to do that. He does sound better as the show goes on, but he's pushing through when he should rest it.