The 28-year-old, who enjoyed Women's Euro 2022 success with England just days ago, will link up with Marc Skinner's squad ahead of our upcoming 2022/23 campaign, bidding to add further bite to our forward line.
Having already enjoyed a decorated career at club level too, the former Manchester City striker is looking forward to beginning the new season as a Red.
''It feels unbelievable, quite surreal,'' began Nikita, when quizzed on how it feels to sign for United.
''It's been quite the summer and this now tops it off. I'm just happy to be here and I can't wait to get started.