Ulster v Sharks: How can I watch, when is it and what’s on the line in crucial URC clash? It’s a massive game for Ulster and the Cell C Sharks tonight as they clash in the final United Rugby Championship regular season game with a lot to play for. ere’s all you need to know about the fixture... When and where is the game? The game is tonight, Friday May 20, at 7:35pm, being played at Ravenhill in Belfast.