Bayern coach Pep Guardiola says Schweinsteiger is in the squad for Saturday's home game against Hoffenheim, though "I don't know if he will play from the start."
The Spaniard says "he can help us a lot with his experience."
Schweinsteiger had been laboring with a nagging patellar tendon problem in his left knee. He aggravated the injury in a pre-season friendly in August.
Despite his injury concerns, Schweinsteiger was named Germany captain following Bayern teammate Philipp Lahm's international retirement.
Meanwhile, Lahm has been ruled out for up to three months after breaking his right ankle in training on Tuesday.
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