Den 5. januar 2013 vendte Nunes tilbage til Invicta Fighting Championships for at møde Sarah D'Alelio på Invicta FC 4: Esparza vs. Hyatt. <ref>{{Cite web|url=http://www.mmarising.com/news/2012/11/23/dalelio-vs-nunes-gomes-vs-yamanaka-official-for-invicta-fc-4/|title=D’Alelio vs Nunes, Gomes vs Yamanaka Official For Invicta FC 4|publisher=MMARising.com|date=2012-11-23|access-date=2012-11-23}}</ref> Nunes tabte kampen via enstemmig afgørelse. <ref>{{Cite web|url=http://www.mmarising.com/articles/2013/01/05/invicta-fc-4-results-carla-esparza-wins-strawweight-title/|title=Invicta FC 4 Results: Carla Esparza Wins Strawweight Title|publisher=MMARising.com|date=2013-01-05|access-date=2013-01-13}}</ref> <ref>{{Cite web|url=http://www.mmajunkie.com/news/2013/01/invicta-fc-4-live-results-7-p-m-et|title=Invicta FC 4 results: Esparza outlasts Hyatt for belt, Davis chokes out Baszler|publisher=MMAjunkie.com|date=2013-01-05|access-date=2013-01-13|url-status=dead|archive-url=https://web.archive.org/web/20130108082317/http://www.mmajunkie.com/news/2013/01/invicta-fc-4-live-results-7-p-m-et|archive-date=2013-01-08}}</ref>
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