Karim Adeyemi scored a brace and provided an assist to lead Borussia Dortmund to a 4-2 win against Heidenheim on Friday evening. The 22-year-old striker first served Donyell Malen on the edge of the box and the Dutchman fired Dortmund’s opener between the posts in the 12th minute. Goalkeeper Kevin Müller touched the ball with his foot, but couldn’t stop it from falling into the net. Adeyemi, assisted by Julian Brandt, then got one himself in the 17th in a fast counterattack after Heidenheim lost the ball in midfield. The guests pulled one back thanks to Marvin Pieringer’s header in the 39th, b…