You posted your question in the English language section of this forum.
Channel 99 is mysports in German
Channel 123 is mysports in French
Both channels have the option for either that language or the “original language” (which is usually German) in Audio settings. Sports (I think only hockey) played in Ticino will be in Italian and if required dubbed into German (ch99) or French (ch123). So to watch hockey in italian, go to either 99 or 123 and in audio settings pick original language.