Viking have scored in 11 straight European games but conceded nine in three Champions League matches, while Sabah average a goal per Champions League game.

Slavia have conceded seven goals in three league-phase games, at least two in every one, while Arsenal have scored six in three.

All three of Como's Champions League games have produced at least five goals, and Lens have conceded in all nine of their Ligue 1 matches this season.

The six previous meetings between these clubs produced 30 goals, and both sides have conceded heavily recently.

Eight of Club Brugge's last nine matches have produced at least three goals, and both sides carry serious attacking threats.

Napoli have scored in three of their last five games and netted 11 in that run, while Porto's last two European games both saw them concede.

Both sides have scored in all three of their Champions League games this season.

Liverpool's three Champions League games have produced 19 goals, and Fenerbahçe have conceded nine in three European games.

Real Madrid have scored 10 goals in three Champions League games and conceded in every one of them, while AEK have conceded eight in their three league-phase games.