It appeared that Natalya suffered an injury during the July 26th 2021 edition of WWE RAW as she needed to be helped to the backstage area after her match.
IMO, looks like underlying/aggravated damage from prior to the match. Tension was applied and the injury was revealed, it doesn't seem to be the result of the wrestling itself but rather the tension/pressure required to wrestle/perform.
— SkullsMedia.com by GIFSkull (@SkullsMedia) July 27, 2021
Natalya publicly commented on the matter…
Thank you to everyone for the kind words about what happened on #WWERaw.
There are the beatings you can plan for, and the ones you can’t. That’s the job. But I’m willing to give whatever bones, muscles and tendons I have to continue doing what I love. Good thing I’m UNBREAKABLE. pic.twitter.com/2K18Lj6IgE
— Nattie (@NatbyNature) July 28, 2021