Borussia Dortmund are in the thick of a genuine title race, sitting second in the Bundesliga with 17 points from seven games, level with leaders Bayern Munich ahead of Saturday's Klassiker at the Allianz Arena. The stakes could hardly be higher, and the timing of the fixture adds extra intrigue given that Bayern will be without head coach Vincent Kompany, who collapsed on the training ground last week and has been diagnosed with meningeal irritation. Co-trainer Aaron Danks has taken charge in his absence.

Dortmund arrive in Munich with momentum behind them. A 1-0 Bundesliga win over Eintracht Frankfurt, sealed by substitute Maximilian Beier in the 80th minute, was followed by a hard-fought 3-2 DFB-Pokal victory over Werder Bremen, with Marcel Sabitzer scoring a late winner after Niclas Füllkrug had twice pulled the visitors level. Niko Kovac's side showed resilience in both matches, though neither performance was without blemish.

Squad news provides a cautious boost. Teenage winger Georgios Karetsas, absent for three games with a foot ligament injury, returned to partial training on Thursday and could be available for Munich if Friday's session goes without issue. Kovac will make the call before the squad departs. Injuries to captain Emre Can, Giannis Konstantelias and Justin Lerma remain ongoing concerns, limiting Kovac's options in key areas. With the referee for Saturday confirmed as Tobias Stieler after Daniel Siebert withdrew with a calf injury, all the variables are set for a defining early-season test.