On July 13, 2017, Martinez entered WWE's Mae Young Classic tournament, defeating Xia Li in her first round match. The following day, Martinez defeated Princesa Sugehit in the second round and Abbey Laith in the quarterfinals, before being eliminated from the tournament in the semifinals by Shayna Baszler. She made an appearance on the October 26, 2017 episode of NXT, participating in a battle royal which was won by Nikki Cross to determine one of the contenders for the vacant NXT Women's Championship at NXT TakeOver: WarGames. Martinez would also lose to Ember Moon on the November 15, 2017 edition of NXT. Martinez made her return to WWE, competing in the second Mae Young Classic. She made it to the second round, defeating Ashley Rayne before being eliminated by Meiko Satomura.
In January 2020, Martinez signed a contract with WWE, and reported to the Performance Center. Martinez entered her first Royal Rumble at the Women's Royal Rumble 2020 at number 6, being the fourth eliminated by Mandy Rose and Sonya Deville after lasting for 8 minutes 14 seconds.
On February 5, Martinez defeated Kacy Catanzaro in her return singles match, marking her first victory on NXT. On the July 22 episode of NXT, Martinez signed with the Robert Stone Brand after attacking Shotzi Blackheart. On the September 8 episode of NXT, after losing to Rhea Ripley in a steel cage match, Robert Stone announced that she was no longer part of the Robert Stone Brand.
Martinez made her main roster debut on the September 21 edition of Raw, where she was revealed as a member of the villainous faction Retribution. On October 9, however, she quietly departed the group and returned to NXT. Martinez made her return to NXT on December 23, attacking NXT Women's champion Io Shirai. She also competed in a triple threat along with Toni Storm at NXT TakeOver: Vengeance Day, but failed to capture the championship. On August 6, Martinez was released from her WWE contract.