Borussia Dortmund remain on course to top Group D, but have endured some nervy moments before half time in their Champions League clash with Anderlecht.
The Bundesliga side, who would guarantee top spot with victory, almost took an early lead when a clever flick from Henrikh Mkhitaryan played in Ciro Immobile, but the Italian forward was denied by a block from Anthony Vanden Borre.
However, Jurgen Klopp's side could easily have been behind after 11 minutes when Aleksandar Mitrovic was given the freedom of the Westfalenstadion to run into, but his effort was steered away from danger by keeper Mitchell Langerak.
The visitors appeared to grow in confidence as first Dennis Praet saw his shot blocked before Chancel Mbemba Mangulu narrowly missed the target with a close-range header.
Immobile tried to calm any nerves among Borussia fans when he latched on to Ilkay Gundogan's cross, but fired narrowly wide.
The Italian frontman was then denied by Silvio Prato from a tight angle before Kevin Grosskreutz fired over.
Dortmund looked to be taking the upper hand later in the half as the German outfit dominated possession and created another chance for Mkhitaryan, who was denied by the in-form keeper.
