Marc Staal’s status is unclear as he recovers from apparent post-concussion symptoms that sidelined him for the Rangers’ past two games before entering this bye week, The Post has learned.

Staal, believed symptom-free after working out this week at the club’s practice facility, has not gone through the NHL’s concussion protocol. It is unknown, therefore, whether he did indeed sustain what would be the third recorded brain injury of his NHL career that began in 2007-08.

The defenseman’s availability is in doubt for Friday’s game against the Maple Leafs at the Garden and Saturday’s match at Montreal. It is similarly unclear whether he will skate when the Blueshirts reconvene for Thursday’s afternoon practice.

Staal took his regular shift throughout the Jan. 3 defeat at the Garden to the Sabres and traveled with the club to Philadelphia immediately thereafter for the following night’s match. But he was sent home last Wednesday after informing the club’s medical staff that he was not feeling well and was held out of both the Jan. 4 match against the Flyers and the Jan. 7 contest at Columbus with what was reported as an “upper body” injury.

Staal, who turns 30 on Friday, missed the first 36 games of the 2011-12 season with symptoms that developed in the aftermath of an infamous check from his brother, Eric, at Carolina on Feb. 22, 2011. He played through those symptoms during the remainder of 2010-11.

That was a mistake he vowed not to make again. And he has not. The defenseman sustained his second concussion in December 2013 and was sidelined for 10 games after taking a headshot from the Devils’ Reid Boucher.

Between those incidents, Staal missed the final 27 games of the 2012-13 season (and all but one playoff match) with an eye injury he sustained when struck by a shot on March 5, 2012.

Since returning from that second concussion, however, Staal had played in 197 of the Rangers’ 202 games — and all 49 playoff matches — until this latest mishap.

Adam Clendening, who played in last week’s victories over the Flyers and Blue Jackets, is expected to remain in the lineup if Staal remains sidelined.