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The Macedonian right-back was spared the indignity when match officials reviewed the incident at half time.
The Senegal striker missed a golden opportunity to double the lead after the break, firing over from six yards after being found by Willian.
Eden Hazard lashed over the bar after Andre Schurrle's initial effort had been blocked in the 71st minute as the Blues continued to apply pressure while enjoying little reward.
The one goal proved to be enough in the end, consigning the Romanian club to a 23rd game without a win - a new record in the competition.