BERLIN (AP) Henrikh Mkhitaryan scored one and set up another as Borussia Dortmund beat third-division side Chemnitzer FC 2-0 in the opening round of the German Cup on Sunday.

The Armenia midfielder crossed for Pierre-Emerick Aubameyang to score with a fine header in the 25th minute, and Aubameyang returned the favor for Mkhitaryan to seal the win with a curling shot inside the far post in the 83rd.

Nils Petersen scored four goals as Freiburg routed fifth-tier Barmbek-Uhlenhorst 5-0, while another second-division team, Bochum, routed fifth-tier Salmrohr by the same score.

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Michael Gregoritsch scored in the fourth minute of injury time for Hamburger SV to take its game at fourth-tier Carl Zeiss Jena to extra time.

Bayern Munich was playing fifth-tier Noettingen later Sunday.