Most Valuable Promotions announced Thursday that Dina Thorslund has withdrawn from her July 11 fight against Shurretta Metcalf after discovering that she's pregnant with her second child.

Cherneka Johnson has stepped in for Thorslund and will now face Metcalf in a bantamweight title unification bout at Madison Square Garden in New York on the undercard of the trilogy fight between Katie Taylor and Amanda Serrano next month on Netflix.

In parallel moves, MVP announced that Thorslund vacated her WBO title and was designated as the WBC's champion in recess, the fight between Johnson and Metcalf will be for the 118-pound undisputed title, and that Johnson, who was tied to promoter Lou Dibella, entered a multi-year promotional agreement with MVP.

"Life can be such a roller coaster, especially as a female boxer. I was really looking forward to this fight, the biggest moment of my career," said Thorslund (23-0, 9 KOs), a 30-year-old from Denmark who signed with MVP in March.

"Recently, I found out I was pregnant, a curve I hadn't expected, but a joyous one. Even though the decision was easy, the athlete in me is sad, as I so wanted to stand in that ring and make history. But I'll be back. The fire that MVP has lit in me only burns even stronger, and when I do step back in the ring, there will be another little person that I can fight for and be a role model for. I plan to show my child that nothing is impossible if you work hard enough for it."

Johnson (17-2, 7 KOs), a 30-year-old Australian, will be making her United States debut.

"This feels like a true pinch-me moment, being part of an all-women’s card headlined by the incredible Amanda Serrano and Katie Taylor," said Johnson. "I'm truly looking forward to this next chapter and being part of Most Valuable Promotions, which are paving the way and shaping the future of women's boxing. The magnitude of this moment isn't lost on me, and I’m ready to rise to it."

The 40-year-old Texan Metcalf (14-4-1, 2 KOs) must now prepare for a new opponent on five weeks' notice.

"Nothing in my career has come easy, but every fight, every sacrifice led to this moment," said Metcalf. "I was built for this. My time is now, and I will rise and conquer."