With one of the great tennis rivalries heating up once again off the court before wimbledon begins today. Defending champ, serena williams, versus maria sharapova. Both stars with s tough words for... See More
With one of the great tennis rivalries heating up once again off the court before wimbledon begins today. Defending champ, serena williams, versus maria sharapova. Both stars with s tough words for each other and abc's gio benitez has the story. Reporter: Serena williams is apologizing, again. I apologize for everything that was said in that article and I feel like, you know, you say things without having all the information. Reporter: Known for her tirades. . I swear to god I will -- Reporter: The meltdown. You're a hater and you're unattractive inside. Reporter: Those tears leading many to dub her a cry baby. I never thought I would be here again, you know. Reporter: The 31-year-old has seen her share of controversy, but this morning, fresh criticism and regret after quotes in "the rolling stone" article where she implied a 16-year-old sexual assault victim in steubenville, ohio, quote, put herself in that position." One of the first things I did was reach out to the family. Reporter: Some asking if her apology is enough? She wants this to be on the sidelines, playing tennis and focusing on that. Reporter: That interview included negative comments about maria sharapova's new boyfriend. I made it a point to reach out to maria, as well, and i said, look, I want to personally apologize to you. Reporter: Sharapova and williams may face each other at wimbledon in the coming days. At the end of the day we have a tremendous amount of respect for what we do on the court but I just think she should be talking about her accomplishments, her achievements rather than everything else that is just get ago tension. Reporter: Now williams is promising to talk more about the sport she's so good at without bringing on more controversy. Maybe I wasn't focused enough in the past on tennis, so, you know, I'm definitely going to try to focus on that for the next two weeks. Reporter: And serena williams has one more potential challenge. She'll be playing without her sister venus who has back problems, the first time in 17 years that venus has miss wimbledon. Guys, back to you. By yway of that, starting on our sister network espn.
This transcript has been automatically generated and may not be 100% accurate.