The focus of the pre-Wimbledon press conference was about the interview she gave to Rolling Stone magazine that touched on a high-profile teenage rape case in Ohio and brought her into conflict with her Russian rival Sharapova.
The defending champion said she personally apologised to Sharapova and told her she was "very sorry for this whole situation":
Tennis champion Serena Williams has apologised over comments she made in a forthcoming interview in which she appeared to assign blame to the 16-year-old victim in an Ohio rape case, for being drunk.
The comments were reported in an interview with Rolling Stone magazine and stirred up US media attention
"What happened in Steubenville was a real shock for me. I was deeply saddened," the women's world number one said in a statement on her website.
"What was written - what I supposedly said - is insensitive and hurtful. I by no means would say or insinuate that she was at all to blame.
"I have fought all of my career for women's equality, women's equal rights, respect in their fields - anything I could do to support women I have done."
The small Ohio town of Steubenville was rocked when the young victim accused two high school American football players of raping her while she was drunk at a party and testified that she remembered little of what happened in the early hours of 12th August, 2012, when she says she was assaulted.