Union Berlin vs Borussia Dortmund: 3 things to watch

Borussia Dortmund travel to face Union Berlin on Saturday seeking to recover from a two-game winless run following the international break. BVB recently drew 2-2 against Werder Bremen in the Bundesliga before falling to a 1-0 Champions League defeat against Bodo/Glimt. Writer Sachin Bhat highlights Dortmund's dip in form, squad rotation questions, and striker Serhou Guirassy's scoring record as key factors.

Guirassy enters the match looking to end a four-game goal drought against an opponent he has scored eight career goals against. Dortmund are expected to make tactical adjustments, with Nico Schlotterbeck, Julian Ryerson, and Felix Nmecha potentially returning to the starting lineup, while Ethan Nwaneri could replace Samuele Inacio in midfield alongside Konstantinos Karetsas.