This is a bummer. The kid needed to get more minutes and now is out most of the rest of the season....
UPDATE: Andre Drummond will be out of the line-up for approximately 4-6 weeks due to a stress fracture of the fifth lumbar vertebra. Drummond has been placed in a custom brace and activity levels will be modified while the injury heals. Team doctors anticipate a full recovery with rest and rehabilitation.
Keith Langlois has more on Pistons.com: http://on.nba.com/12zTQtl
Hopefully they play Kratsov some more now. Jerebko needs some more minutes too.