Another injury has hit “Spider-Man, Turn Off the Dark,” with one of its lead thesps, Natalie Mendoza, temporarily out of the show due to a concussion incurred during the production’s first preview.

Mendoza plays Arachne, a mythical character with deep ties to Peter Parker’s superpowers. Thesp sustained the injury Nov. 28, when she was struck in the head, but felt well enough to perform in “Spider-Man” one more time Dec. 1.

It’s not currently clear whether she was hit by a rope, as originally believed, or by the piece of equipment that was attached to the rope.

She then missed the Dec. 2 perf, with understudy America Olivo stepping into the role. Mendoza isn’t expected to return to the role until Tuesday at the earliest.

Two actors already have been hurt during rehearsals for the stunt-heavy mega-musical.

Legit thesp union Actors’ Equity is currently investigating the latest injury.

According to a rep for the org, union already has a presence at every performance and rehearsal, and it has kept in close contact with the Dept. of Labor, which also monitors actor safety.

Prior to the start of previews, the DOL approved the complicated aerial stunts performed during the show.

Media coverage has been intense for “Spider-Man” thanks to a series of high-profile delays and a budget that has grown to some $65 million. Production is skedded to open Jan. 11.