Erling Haaland continued his superb start to life at Borussia Dortmund, who thrashed Union Berlin 5-0 at Signal Iduna Park on Saturday afternoon.
After netting five goals in his first two games as substitute, Erlin Haaland was handed his first start for Dortmund.
Jadon Sancho opened the scoring for the home side in the 13th minute to take his tally to 12 league goals for the season.
Haaland repaid the faith almost immediately as doubled Dortmund's lead five minutes later with his sixth Bundesliga goal in three games.
Marco Reus extened the lead from the penalty spot in the 68th minute, before Axel Witsel bagged the home side's fourth goal two minutes later.
Haaland had the final say on the day as he completed his brace in the 76th minute, making his seven league goals in three games.
An impressive first-half showing was enough to see Bayern Munich claim a 3-1 victory away to Mainz on Saturday afternoon.
Robert Lewandowski got the scoring underway as early as the eighth minute with his 22nd league goal of the season.
Thomas Muller doubled the side's advantage on 14 minutes, before Thiago Alcantara got in on the act with a neat finish in the 26th minute.
Jeremiah St. Juste pulled a goal back for the home side just before the break, but that proved to be the final goal as Bayern eased to victory.
