Kowalkiewicz has won both of her UFC fights, the last being over Heather Clark at UFC Fight Night 87.
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Meanwhile, Namajunas is unbeaten in her last three fights. She recently defeated Tecia Torres in April at UFC on FOX 19.
It should prove to be an interesting battle, as the new generation of strawweights set their sights on the top-5.
— Rose Namajunas (@rosenamajunas) June 7, 2016
UFC 201 takes place July 30th at the Phillips Arena in Atlanta, Georgia. Welterweight champion Robbie Lawler defends against Tyron Woodley in the main event, while flyweight champ Demetrious Johnson takes on Wilson Reis in the co-main event.