The joint-captain debuted four years ago
Joint-captain Rob Herring will make his one hundredth appearance for Ulster tomorrow night, as they take on Scarlets at home in the Pro12.
There will be eight new faces in the starting fifteen, with Ireland's Paddy Jackson and Craig Gilroy making their returns.
Callum Black, Pete Browne, Alan O'Connor and Robbie Diack join the forwards, with Stuart McCloskey and All Black Charles Piatau in the backs.
The Scarlets have won just one of their previous twelve visits to Irish provinces, that was at the Kingspan Stadium on February 21.