Pep Guardiola has enjoyed the luxury of a fully-fit squad for several weeks, but Laporte entered the treatment room before Saturday's defeat to Leeds United with a minor hip problem.
However, the France international has since been pictured being put through his paces on the training pitches, so Guardiola is expected to have him available for Wednesday's trip to the Westfalenstadion.
Sergio Aguero was also ruled out of the defeat to Leeds due to a knock, and the Argentine's condition remains uncertain after he was not pictured in City's Monday training session.
Guardiola's side travel to Dortmund boasting a 2-1 lead from the first leg at the Etihad, during which Kevin De Bruyne and Phil Foden netted either side of Marco Reus's equaliser last week. body check tags ::