Chelsea missed the chance to qualify for the Women's Champions League quarter-finals after they were held to a 1-1 draw by Real Madrid.
Runners-up to Lyon last year, a fourth successive victory in this season's competition would have seen Emma Hayes' side through Group A with two games to spare.
However, they were forced to settle for a point at Estadio Alfredo di Stefano after Guro Reiten's penalty, which cannoned in off goalkeeper Misa Rodriguez, cancelled out an earlier effort from Caroline Weir.
Paris Saint-Germain leapfrogged Madrid to second place in Group A following a commanding 4-0 victory over Vllaznia, whose elimination was subsequently confirmed.
Kadidiatou Diani scored twice while Ramona Bachmann and Magnaba Folquet were also on target for PSG, who will be through with victory over Madrid when they clash at Parc des Princes next week.
Elsewhere, two-time champions Wolfsburg are the first side through to this season's quarter-finals after an entertaining 4-2 win over Roma.
Ewa Pajor's brace, which took her group-stage tally to six goals, sandwiched strikes from SveindIs Jonsdottir and Lena Lattwein, ensuring efforts from Andressa Alves Da Silva and Sophie Roman Haug were merely consolations for Roma.
The German side's 11th last-eight appearance in as many continental campaigns was confirmed after St Polten failed to beat Slavia Praha in the other Group B encounter.
The Czech outfit netted their first goal of the campaign through Kristyna Ruzickova, but Mateja Zver's free-kick means they can no longer qualify for the knockout phase.