Borussia Dortmund's Niclas Fullkrug fired in a first-half goal to seal a 1-0 victory over visitors Paris Saint-Germain in their Champions League semi-final first leg on Wednesday.

Nico Schlotterbeck floated a pass into Fuellkrug's path and the Germany forward controlled the ball with a perfect first touch before drilling a low shot past keeper Gianluigi Donnarumma in the 36th minute.

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PSG, on the backfoot for much of the first half, improved after the break and had a golden double chance in the 51st minute but twice hit the woodwork through Kylian Mbappe and Achraf Hakimi also hitting the woodwork on the rebound.

Only four minutes later Fabian Ruiz saw his stooping header sail wide after being left completely unmarked in the box before Dortmund keeper Gregor Kobel kept out Ousmane Dembele's close range effort in the 71st.

Dortmund, winners in 1997 and looking to reach their first final since 2013, soaked up the pressure as PSG's Vitinha narrowly missed the target 10 minutes later to leave the French side needing a win in Tuesday's return leg in Paris.

The winners of the tie will face either Bayern Munich or Real Madrid, who drew 2-2 in Tuesday's first leg in Munich.