Manchester City were left facing another uphill battle to advance in the Champions League after an unconvincing 1-1 draw at home to Roma.
Sergio Aguero's fourth-minute penalty was cancelled out by a superbly-taken equaliser from Francesco Totti in a clash at the Etihad Stadium dominated by the Italian side.
The result left City third with just one point from their opening two games in Group E and already five behind leaders Bayern Munich.
They next face CSKA Moscow in crucial back-to-back games starting with a trip to the Russian capital in three weeks.
Elsewhere, Nemanja Matic scored a first-half header as Chelsea edged out Sporting Lisbon in a breathless encounter to go top of Champions League Group G.
Brimming with pace and purpose, Chelsea almost took the lead inside two minutes when Diego Costa raced clear but Sporting goalkeeper Rui Patricio smothered his effort.
Andre Schurrle wasted several openings before Matic rose to loop a Cesc Fabregas free-kick over Patricio.
Sporting improved after the break but Chelsea held on for an important win.
In the night's other big game, Barcelona suffered their first defeat of the season as Paris St-Germain moved top of Group F with a thrilling Champions League victory.
The visitors, who had not conceded all season before arriving at Parc des Princes, fell behind when former Chelsea defender David Luiz scored.
Lionel Messi grabbed an equaliser but Marco Verratti nodded in PSG's second before Blaise Matuidi poked in a third
Although Neymar reduced the deficit, Barcelona could not find an equaliser.
Victory for the PSG continued their unbeaten start to the season and means they are now top of their group with four points, one more than Barcelona.
In the group's other game, Apoel Nicosia shared a 1-1 draw with Dutch champions Ajax in Cyprus.
Meanwhile, two last-minute goals earned Group H leaders Porto a 2-2 draw at Shakhtar Donetsk.
Belarusian side BATE move up to second in the standings after edging Athletic Bilbao 2-1.
In Group G, Klaas-Jan Huntelaar ensured German side Schalke drew 1-1 at home to Maribor.
Finally, in Group E, while Bayern Munich won 1-0 at CSKA Moscow.