Niclas Füllkrug made his Borussia Dortmund debut on Friday but couldn’t prevent the team squandering a two-goal lead as promoted Heidenheim fought back to draw 2-2 and claim its first point in the Bundesliga. “Two-nil down after 14 minutes and then to take a point, Heidenheim in Dortmund, it’s mega,” visiting coach Frank Schmidt said. “It’s hard to explain,” Dortmund …
