Ulster will be hoping to put an end to their poor recent form at just the right time as they play La Rochelle in a crucial games in the European Champions Cup.
Les Kiss's side sit two points behind their opponents in Pool 1, and with third place Wasps favourites to beat Harlequins this evening, they need a win to keep their qualification hopes alive.
Christian Lealiifano will play his last home match for Ulster at fly-half while Craig Gilroy and Louis Ludik return to the backline after missing the loss to Leinster.
Kick off is at 1pm.
Elsewhere today Exeter play Montpellier at 3.15pm, Northampton play Clermont at 5.30pm, and Ospreys play Saracens from 7.45pm.
Connacht could seal their place in the quarter finals of the Challenge Cup today with a win over Worcester Warriors at 3pm.