Doctors ruled Letang, who has not played since Jan. 27, is well enough to return after not practicing with the Penguins in six weeks. Bylsma said the team knew there was a chance he could return to practice at this point, but the 2013 Norris Trophy finalist "still has some other things to go through."
Bylsma said the date of Letang's full return is to be determined.
"He's been working out. He's been skating on his own, doing quite a bit on his own," Bylsma said. "It's not a complete surprise."