Borussia Dortmund and Manchester City have yet to break the deadlock in their Champions League Group D clash, which is goalless at half time in Germany.
It was a slow start at Signal-Iduna-Park, as both sides took some time to get into the rhythm.
The match got going in the 11th minute when Dortmund created the first meaningful chance of the game.
Oliver Kirch found himself with the ball just outside the City penalty area and took an attempt on goal, but it was palmed over the crossbar by Joe Hart.
City conceived a good attacking move in the 18th minute with Carlos Tevez playing Samir Nasri through, but Marcel Schmelzer dispossessed the Frenchman.
Six minutes later Nasri tried to send Edin Dzeko through from the left after an intricate passing move, but Schmelzer made an important interception to clear the ball away for a corner.
Minutes later Julian Schieber failed to head home Ivan Perisic's cross from the left.
Then in the 34th minute Dzeko forced Dortmund goalkeeper Roman Weidenfeller into making a good save, and moments later Marco Reus's drive shaved the outside of the City post.