Claressa Shields ripped into Laila Ali with "receipts" about the former boxer in a new video.
For years, the athletes have been at odds, and Shields, 30, has repeatedly challenged Ali, 47, to come out of retirement and fight her. Two weeks ago, Ali addressed Shields in a video, calling the Olympian "way too comfortable" with speaking about Ali and her late father, boxing icon Muhammad Ali.
Among some of the comments that Ali made about Shields, the retired boxer said that her father would call the 'GWOAT' a "generic wannabe" if he were still alive. "She does not represent anything about him in the ring or outside of the ring," Ali said.
In Shields' video, she accused Ali of "hating on the youth" before "setting the record straight" on how the two fell out.
"You are officially the most obsessed with me," Shields said at the 13:00-minute mark of the video below.
Shields claims that after beating Canadian boxer Mary Spencer during the 2012 Summer Olympics, she and Ali developed a "big sister and little sister relationship."
"And now I wonder if it was even genuine because she gave me bad advice," Shields added. "She told me to stay amateur and win as many Olympic gold medals as I can because there was no TV exposure and no money for women's boxing in the professionals."
The video then cut to Ali's recent post, where she claimed to have given Shields "valuable advice" to hire a nutritionist and "trim off that excess body fat."
According to Shields, the comments were Ali attempting to "body shame" and discredit the boxer, who was in five different weight classes.
The video went on to pull different interviews that Ali had given, like a 2018 visit to The Breakfast Club, where she claimed that no female athlete posed a challenge.
Elsewhere, Shields' called out Ali for her alleged silence on matters of racism and police brutality, comparing her to Colin Kaepernick and "hating on any woman in combat sports who starts getting more notoriety than her."
Midway through the video, Shields told Ali that the offer to spar is "still on the table" and that both knew that Ali would never fight against her. The boxer also threw a punch by referencing Ali's stepmother, Veronica Porché, who told Shields to "kick Laila's ass."
"So my message to all the young girls and young boys coming up, never let the people that came before you try to discourage you, put fear into you, and make you not want to chase your dreams," Shields warned.
The boxer concluded by telling fans that she wouldn't make them "wait long" for her next event to defend her undisputed heavyweight title.
The boxer has provoked Ali multiple times, like during an encounter with TMZ in August, where she accused Ali of "backpedaling" from her $15 million request.
Ali retired undefeated from women's boxing in 2007, five years before it became an Olympic sport.