Dortmund frustrated by stalemate at Union
Borussia Dortmund extended its unbeaten start to the Bundesliga season, but was frustrated by a 0-0 draw with Union Berlin.
Niko Kovac's side temporarily moved top of the table, but missed a chance to pile some real pressure on Freiburg and Bayern Munich after a second straight draw.
Both sides struggled to create clear-cut chances in the first half, with Tim Skarke and Janik Haberer both firing wide for Union.
Dortmund threatened just before the break with some lovely one-touch link-up play down the left, but Ethan Nwaneri could not finish it off, firing straight at Frederik Ronnow.
Dortmund upped the pressure after the break as Maximilian Beier got in front of his marker to meet Julian Ryerson's cross, but he volleyed wide under no pressure.
Skarke and Nwaneri both fired wide at either end as both sides continued to toil and the match became increasingly gritty.
Serhou Guirassy had two late chances to find a winner, but he awkwardly volleyed straight at Ronnow before his off-target header hit Mathis Albert, only to bounce narrowly wide.
