Manchester City boss Pep Guardiola declared it mission accomplished after his side’s 0-0 Champions League draw against Borussia Dortmund. The shared points after a largely uneventful encounter at Signal Iduna Park were enough to see already-qualified City clinch top spot in Group G with one game remaining and Dortmund also progress to the last 16. City went closest to breaking the deadlock when Riyad Mahrez’s second-half penalty was saved, but neither side showed any urgency to chase a winner in the closing stages.