U.S. international Gio Reyna helped Dortmund build a 1-0 lead, but saw his team unravel while on the bench in the final 26 minutes of the club's 2-1 loss in the Champions League group stage to Bologna Tuesday.
Reyna had a solid but not specular showing in his 64 minutes, connecting on 93.8 percent of his passes as well as a long ball and through ball pass.
Dortmund took an early lead off of Serhou Guirassy's 15th-minute penalty. Things came apart for BVB just six minutes after Reyna came off. Thijs Dallinga came off the bench to rally the home side and equalize while highly-touted English winger Samuel Iling-Junior scored the game-winner for the Serie A club.