Borussia Dortmund have established a half-time 2-1 lead over Schalke 04 in their Bundesliga Ruhr derby clash at the Signal-Iduna-Park.
Leroy Sane came close to scoring in the 20th minute by peeling away from his marker and getting on the end of a cross from Dennis Aogo, but the shot sailed just wide of the left post.
Half an hour in, the hosts took the lead through Shinji Kagawa, who headed home from Matthias Ginter's lofted cross into the Schalke box.
Just three minutes elapsed, however, before Sane put the ball on a plate for Klaas-Jan Huntelaar, who was able to score with a simple close-range finish.
Nevertheless, Thomas Tuchel's charges ended the half in front after Ginter outjumped the defenders inside the six-yard box to meet a corner and power a header down the centre of the goal.
