WATCH: Tieran O'Halloran's try against Ulster

Connacht opened the scoring in their Pro14 derby against Ulster following a well-worked move from a scrum that fullback Tiernan O'Halloran finished off.

The try did come under some scrutiny with the TMO ruling that Ulster were not obstructed in the build-up to the try. 

🏉| Referee ruling against @UlsterRugby that there was no obstruction, should the try have been awarded?#GuinnessPRO14 pic.twitter.com/WiB0Um2Mde

— Premier Sports 📺 (@PremierSportsTV) October 5, 2018