Bayern Munich were given good news on Tuesday as Holger Badstuber and Douglas Costa returned to training having completed a rigorous running and athletics program.
Arjen Robben, Jerome Boateng and Renato Sanches could be treated in the power center in the morning, with the injured trio making progress.
Carlo Ancelotti could have a fully fit squad come early September with many injured players looking to close in on a return.
Badstuber and Costa are unlikely to feature against Werder Bremen as it is deemed a risk, especially with the Bundesliga international break right after that.
The goal is for all five players to fit and available against Schalke.