FT
Napoli
5
–
0
Club Brugge KV
Started
FT
Legia Warszawa
0
–
2
Napoli
Started
FT
FC Midtjylland
1
–
4
Napoli
—
FT
Napoli
5
–
0
FC Midtjylland
—
FT
Club Brugge KV
0
–
1
Napoli
—
FT
Napoli
5
–
2
Legia Warszawa
Started
FT
Villarreal
1
–
0
Napoli
Started
FT
Napoli
1
–
1
Villarreal
Started
Faded rows: team matches without D. Mertens in the lineup