Lazio booked their place in the last 16 of the Europa League by beating Real Sociedad 3-1 at the Stadio Olimpico on Thursday.

Mario Gila, Mattia Zaccagni and Valentin Castellanos were on target for Marco Baroni's side, who sit three points and eight goals clear of second place and are very likely to top the league phase.

Eintracht Frankfurt and Athletic Club sit second and third on 16 points and are all but certain to follow Lazio in skipping the play-off round.

Athletic lost 4-1 at Besiktas on Wednesday but should have enough points, while Eintracht overcame Ferencvaros 2-0 on Thursday.

The race to finish in the remaining positions in the top eight is set to go down to the wire, with just one point separating Lyon, Tottenham, Anderlecht, FCSB, Galatasaray and Bodo/Glimt between fifth and 10th.

Viktoria Plzen beat Anderlecht 2-0 to remain in contention alongside Olympiacos, one point behind in 11th and 12th.

The race for the top 24 is also intriguing, with Porto's hopes dealt a huge blow as they were beaten 1-0 at home by Olympiacos.

The Portuguese club sit 25th, a point outside the play-off places, behind Besiktas, who are in pole position but could be caught by FC Twente when the two teams meet in next week's finale.

Roma sit four places above the dotted line but could also go out after they were beaten 1-0 by AZ Alkmaar.