To be honest I'd never heard of this chap until a couple of weeks ago when he got in trouble for wearing a rainbow T-shirt in Qatar.
Now I've read that he collapsed and died during the Argentina-Netherlands game last night. Aged 48. Mark Chapman just mentioned on the radio that Wahl was sharing a flat with some of the international football journalists working with the BBC on the World Cup coverage.
As I say, I really knew very little about him but I just found the news quite shocking. RIP.
https://www.bbc.co.uk/news/world-us-canada-63927054