Unbeaten Bayer Leverkusen went eight points clear at the top of the Bundesliga on Saturday after a 2-1 win at Heidenheim while the four other games in the German top flight were again interrupted by fan protests. Right wingback Jeremie Frimpong netted with his left foot after a quick break and Amine Adli rounded the goalkeeper to hand Leverkusen victory ahead of second-placed Bayern Munich going to Bochum on Sunday. The win was a 32nd game unbeaten in all competitions, equalling an old German re