Sebastian Haller and Marco Reus scored a brace each as Borussia Dortmund beat FC Koln 6-1 in Bundesliga at Signal Iduna Park. Raphael Guerreiro and Donyell Malen were also amongst the goals as Edin Terzic’s side leapfrogged Bayern Munich to go top of the table. Dortmund are on 53 points having played one more match than Bayern, who are on 52. Bayern face Bayer Leverkusen on Sunday.