Not sure anything’s changed since https://en.community.sonos.com/controllers-and-music-services-228995/mlb-on-sonos-6857437#:~:text=As%20far%20as%20I%20know,the%20game%20on%20iHeart%20radio.

Perhaps a better/more direct link to the same thread. 
 

Sorry, @106rallye…that one just doesn’t look right. And when I tried to cut and paste, I got the same thing. Seemed to be easier to make it a real link, for ease of use ;)

Just out of curiosity, what do you get following the link? It works on my iPad:

It only shows up as text on my iPad, and I have to highlight it, and use the ‘open link’ option in the iOS UI. 

The link data is fine, it just doesn’t show up as an underlined link, merely text.