The Germany international recently picked up another ankle injury, but could be match fit in time for Bayern Munich's Supercup clash against Borussia Dortmund on Sunday
The Germany international picked up an ankle injury in last week's LIGA Total! Cup, and Bayern initially feared for a serious injury.
Nevertheless, an early comeback seems on the cards and Schweinsteiger could even make the squad for Sunday's match.
"He's been working on sports rehab for the last few days," Heynckes told reporters.
"The injury wasn't particularly serious and all the pain has gone now. Will he make the squad for Sunday's game? We will have to wait and see how much progress he has made."
Sunday's Supercup kicks off at 20:00CET.