Reus reaches 100 goals as Dortmund beats Leipzig 4-1
The Germany forward ran onto Jadon Sancho’s throughball and fired inside the far post in injury time as new coach Lucien Favre enjoyed a winning start to the league campaign after falling behind to an early goal.
Jean-Kevin Augustin gave the visitors a great start after Dortmund failed to clear the ball in the first minute. Kevin Kampl eluded two defenders to send it back in, where Yussuf Poulsen set up the French forward to score.
Roman Buerki produced a brilliant save to deny Augustin minutes later, and then Dortmund shocked the visitors with two goals before the break.
Belgian midfielder Witsel also scored in the cup on his Dortmund debut.
Earlier, Mainz substitute Anthony Ujah scored late to beat visiting Stuttgart 1-0.