Ireland viewers can tune in the Eleven Sports. As mentioned, BT Sport will no longer provide the service starting from December 3rd. You will want to purchase the PPV through the UFC.tv for a safer and more comfortable option. If you already have the UFC FIGHT PASS, the process will be much easier. Not to mention that you can also watch Preliminary Fights live stream for free by using your FIGHT PASS credentials.
Unfortunately, you won’t be able to watch UFC 252 in the BT Sport. Perhaps you haven’t known this yet; the BT spokesperson confirmed that BT company would end the relationship with the UFC on December 3rd. That means BT Sports will no longer broadcast the UFC events on the channel. The UFC 252 event happens on Saturday, 15 August, 2020. But you can still purchase the PPV through the service.