10 Dec, 12:23
Ireland's John Lacey will referee his first ever RBS 6 Nations match in February, while Alain Rolland is also included in the Elite Panel in what is his last season.
Connacht lost 10-6 on the day but go through thanks to their emphatic victory in Galway in the first leg.
They now meet Narbonne who defeated London Irish 29-10.
The first leg of the quarter-final will take place on the weekend of January 23rd with the second leg a week later.