Dortmund 1-0 Arminia Bielefeld: Haaland returns, Wolf's strike secures win

Erling Haaland returns from injury as Marius Wolf's first-half strike secures hard-fought win and boost hosts' title hopes after slip up by leaders Bayern Munich.

Line-ups

Dortmund XI: Witsel, Schulz, T Hazard, Emre Can, Wolf, Dahoud, G. Kobel, Passlack, M. Pongracic, D. Malen, J. Bellingham

Subs: Hitz, Brandt, Haaland, L. Maloney, Reyna, Reinier, S. Coulibaly

Arminia Bielefeld XI: S. Ortega Moreno, A. Schöpf, C. Brunner, A. Pieper, M. Okugawa, B. Lasme, A. Andrade, S. Vasiliadis, Hack, G. Bello, P. Wimmer

Subs: F. Klos, M. Prietl, S. Kapino, B. İnce, J. Frommann, V. Cherny, Arne Schulz