Borussia Dortmund’s Bundesliga title aspirations suffered a fresh dent on Friday as they crashed to a 2-1 defeat at Union Berlin on the nig...

Borussia Dortmund’s Bundesliga title aspirations suffered a fresh dent on Friday as they crashed to a 2-1 defeat at Union Berlin on the night their striker Youssoufa Moukoko became the league’s youngest ever goalscorer.
After Liverpool loanee Taiwo Awoniyi headed Union into the lead early in the second half, Moukoko leapt into the air to celebrate making history when he equalised for Dortmund aged just 16 years and 28 days.
Moukoko broke the previous record of Leverkusen’s Florian Wirtz, who was 17 years, 34 days when he scored against Bayern Munich in June.
However, Moukoko’s delight was short-lived as Dortmund again conceded from a set-piece with Union centre-back Marvin Friedrich heading the winner from a corner with 12 minutes left.
“We have now lost two league games through set-pieces – that’s a disaster,” Dortmund defender Mats Hummels fumed to DAZN, also referring to November’s 2-1 shock home defeat to Cologne. “We’re simply beating ourselves up, that can’t be allowed to happen.”
Saturday’s 5-1 thrashing at home to Stuttgart cost head coach Lucien Favre his job, but Dortmund’s defensive woes were exposed again by Union, who also beat them 3-1 in eastern Berlin last season.
Despite bouncing back in mid-week with a 2-1 win at Werder Bremen under caretaker coach Edin Terzic, Dortmund...