Hi,
as suggested I would like to open a new thread for this toppic. As far as I know the BBC does not offer there sport videos via the the iplayer. They have a sepereate app for that called BBCSport which is available for smart phones and some smart tvs. Here you can find some information about it:
https://www.bbc.co.uk/sport/27688551.
Here Via the website https://www.bbc.co.uk/sport you can access these videos and live-streams.
I would be great if these videos and streams would also be playable and recordable within the iptv-player as well as the "normal" iplayer videos. The old "BBC iPlayer Recorder" made it possible to acces these streams, but it does noch work anymore.
Hope there will be an update for the iptv-player soon because I would love to watch and record the upcoming wimbledon tennis-streams :)