Andrew Trimble ruled out for the rest of the season

Paddy Jackson will start at stand-off for Ireland when they take on South Africa at Newlands on Saturday and fellow Ulsterman Craig Gilroy has backed him to play a starring role.

Director of Rugby, Les Kiss, has named his match day squad for the Guinness PRO12 Round 22 clash against Ospreys on Saturday (kick-off 3pm), as Ulster aims to make the play-offs for a fourth successive year.

Paddy Jackson admitted his emotions almost got the better of him during the second-half of Ulster's emphatic 30-6 Guinness PRO12 win over provincial rivals Leinster.