10 Dec, 12:23
Ireland's John Lacey will referee his first ever RBS 6 Nations while Alain Rolland is also included in the Elite Panel in what is his last season.
It's the first time that Ulster have been able to field an unchanged side all season and they know exactly what they need to do (basically out-score the Saints by four tries) if they are to gain themselves a knock-out place.
Ulster. Bryn Cunningham; James Topping, Ryan Constable, Shane Stewart, Sheldon Coulter; David Humphreys, Neil Doak; Robbie Kempson, Matt Sexton, Simon Best; Gary Longwell, Jeremy Davidson; Andy Ward (capt), Neil McMillan, Tony McWhirter. Replacements: Justin Fitzpatrick, Paul Shields, Mark Blair, Russell Nelson, Kieran Campbell, Jan Cunningham, Scott Young.