Inter Milan clinched fourth place in Serie A after a 2-1 home victory over Empoli on Saturday while AC Milan gave their European aspirations a boost with a 1-0 triumph over 10-man Bologna.
Napoli could become the first team in Champions League history to qualify from their group after only three games on Wednesday, providing welcome relief from their recent troubles.
News of all that's transpired on and off the football field
Immobile strikes in Lazio's win, in contention for golden boot. IMAGES from the Serie A matches played on Wednesday.
IMAGES from Europa League matches played on Thursday.
Brighton and Hove Albion scored late to earn a 1-1 draw at Crystal Palace. Sheffield United and Fulham also drew 1-1 as both teams picked up their first points.
The draw interrupted a run of four straight league wins for Zinedine Zidane's side and left them second on 67 points after 31 games, three behind leaders Atletico who thrashed Eibar 5-0 earlier in the day.
Alexis Sanchez had equalised for the visitors, scoring on the rebound after Manuel Neuer saved his 30th-minute penalty but the Gunners suffered when captain Laurent Koscielny limped off injured to leave the defence exposed.
News of all that's transpired on and off the football field
A summary of Tuesday's group matches in the UEFA Champions League.