Here's how to watch the 2023 Castres Olympique vs Union Bordeaux Begles broadcast on FloRugby. The 2023 Castres Olympique vs Union Bordeaux Begles broadcast starts on Jan 27, 2023. Stream or cast from your desktop, mobile or TV. Now available on Roku, Fire TV, Chromecast and Apple TV. Don’t forget to download the FloSports app on iOS or Android! If you can’t watch live, catch up with the replays! Video footage from the event will be archived and stored in a video library for FloRugby subscribers to watch for the duration of their subscription.