Real Sociedad v Rosenborg BK, 14 September 2017
| Score | 4-0 to Real Sociedad |
| Referee | Paolo Mazzoleni |
| Competition | UEFA Europa League Group L |
| Venue | San Sebastian |
| Attendance | 21,479 |
Kick-off: 9.05pm local (8.05pm BST)
4 Real Sociedad
Manager: Eusebio Sacristán
0 Rosenborg BK
Manager: Kåre Ingebrigtsen