If hockey had bullpens, the Bruins would have had Dennis Seidenberg “up and skating’’ midway through Game 3 against the Canadiens Tuesday night.

Seidenberg, recovering from midseason knee surgery, is skating regularly again and looks strong and comfortable during workouts. A heavy skater, his blades sound as if they’re shredding the ice when he tears around during workouts.

“Yes, I’m feeling better,’’ the broad-shouldered defenseman said late Tuesday, following the Bruins’ 4-2 loss to the Canadiens. “I could probably play right now.’’

Stop the Internet (and presses) right there — Seidenberg, the second-most important defenseman in the Boston lineup, says he feels well enough to “probably play’’?

Pain? Not bad, he said.

Soreness or swelling? Not a concern.

Range of motion? Fine.

Does this mean the 32-year-old Seidenberg is good to go?

Not really. We don’t think.

But best to keep an eye on the bullpen.

The remaining issue, noted Seidenberg, is the standard timeline to full recovery. He feels what he feels, which is better and stronger each day, his skating confident and strong. But the doctors, physical therapists, and trainers overseeing his recovery have made it clear to him that the body heals at its own rate. Which isn’t to say how he feels is inconsequential, but it’s not all that counts.

Seidenberg tore the ACL and MCL in his right knee against Ottawa Dec. 27, and had surgery Jan. 7. In general, the timeline given for full recovery from such a procedure is 6-8 months, so he was originally not expected back until training camp for next season.

Whatever timeline he’s been given — and Seidenberg would not say — it was not in synch with May 6. When the experts tell him that flesh, bone, and soft tissue are all one again, fully mended, that’s when he finally gets the green light for full contact and game action.