Bayern Munich were held to their first draw of the season by Union Berlin whilst Bayer Leverkusen hammered Heidenheim 6-0 in the Bundesliga on Saturday.
Napoli's attacking woes deepened as Antonio Conte's side were held to a 0–0 draw by Eintracht Frankfurt in the Champions League, leaving both clubs on four points after four games.
Bayern Munich handed Paris Saint-Germain their first defeat of the Champions League campaign, winning 2–1 at the Parc des Princes to extend their perfect start to 16 victories in all competitions.
Bayern Munich defender Hiroki Ito has returned to full training following a metatarsal fracture sustained earlier in the season.
Luis Enrique has said Paris Saint-Germain are confident they can end Bayern Munich's remarkable 15-match winning run in the Champions League when the sides meet at the Parc des Princes on Tuesday night.
Borussia Dortmund have been handed a major defensive boost ahead of their UEFA Champions League clash with Manchester City, as Nico Schlotterbeck and Niklas Sule are both expected to return to the squad.