Three first-half headers put Dortmund on the way to win over Mainz
Borussia Dortmund beat Mainz 4-0 to extend its unbeaten league run to 15 games and close the gap with Bundesliga leader Bayern Munich to three points on Friday. The result, anchored by three first-half headers, left Dortmund three points behind Bayern, which is at Werder Bremen on Saturday. Although its European form …







