Pro Wrestling Sheet has learned Nikki Bella was initially scheduled to be on RAW last night … but after receiving news that affects her entire career a few days before, the plan was changed.

Sources tell us Nikki recently met with doctors who nixed any sort of appearance just yet, informing her that an accidental bump — even while ringside — could severely set her recovery back.

We’re told the plan was for Nikki to set something up last night which would have factored into the 5-on-5 Divas match at WrestleMania 32, but in a non-wrestling role.

Our sources say Nikki will meet again with doctors in July for a CAT scan to determine whether the bone in her neck has fused — but regardless, she was told a full-time ring return will never be possible based on the severity of her injury.

The “Total Divas” star is very hopeful she’ll be able to make a big comeback on a part-time basis if the surgery is a success. However, she won’t even know if that’s a possibility for a few more months.

As we previously reported, Brie Bella will be retiring following the RAW after Mania — and we’re told Nikki is very sad she can’t be ringside to support her sister.

🙁