Click on the links above to watch BBC coverage of the match from Scotstoun, or to listen to BBC Radio Scotland's commentary.
This is how the teams line up this evening...
Glasgow Warriors: S Hogg, L Sarto, M Bennett, A Dunbar, T Seymour, F Russell, H Pyrgos (co-captain); G Reid, F Brown, Z Fagerson, G Peterson, J Gray (co-captain), T Uanivi, L Wynne, R Wilson.
Replacements: P MacArthur, A Allan, S Puafisi, S Thomson, M Fagerson, A Price, N Grigg, R Hughes.
Ulster: J Payne, L Ludik, D Cave, S McCloskey, C Piutau; P Jackson, R Pienaar; A Warwick, R Herring (captain), R Ah You, A O'Connor, F van der Merwe, I Henderson, S Reidy, R Wilson.
Replacements: R Best, C Black, R Kane, P Browne, C Ross, P Marshall, S Olding, R Lyttle.
Referee: Ian Davies (WRU)