Sidney Crosby is staying on the ice longer and longer these days and is even tiring out head coach Dan Bylsma.

Crosby skated on Sunday at the Consol Energy Center, participating in a 45-minute workout session in the early morning. “I was on the ice. I left before he got finished. So he tired me out,” said Bylsma.

Crosby’s work ethic has often been the stuff of legend in Pittsburgh, so news of his marathon sessions have got to be exciting for fans. He’s yet to have rejoined his teammates for practice, of course, but the steps are marching in the right direction and it could be time for a return to that setting soon.

The Penguins are sticking with a cautious approach, however, and that means taking all the time needed to assess Crosby. There’s no formal deadline for his return.

Crosby didn’t speak to media following the practice.

“Sid’s been around a lot for three weeks, four weeks, being a part of it,” Bylsma said. “He’s in every day, talking to our players. He has been with our team for a while now. Again, there’s been no expectations talked about, there’s been no timetable talked about, when it’s possible for him to even return with the team.”

Crosby hasn’t played since January 5, but he still ranks 19th in league scoring with 66 points in 41 games.

Despite being impressed with how far Crosby’s come, Bylsma isn’t budging and hasn’t made any predictions as to his return to full practice duties. “That conversation has not been broached, and I don’t have expectations for it right now,” Bylsma said. “Obviously, I’m encouraged to watch him on the ice and watch him skate, go through the paces that he’s going through. Those are encouraging signs to see him to be able to do that.”

Here’s some footage of Crosby practicing from a couple of days ago.