Richard Williams, Serena and Venus’ father, has suffered a stroke, according to *Radar Online*.
Richard Williams is "up and walking around, but he's not at 100 percent," his third wife, Lakeisha, said.
A former coach of his two Grand Slam-winning daughters, he reportedly experienced memory problems and, unaware that he had a stroke, refused medical attention.
Neither Serena nor Venus Williams publicly referenced any problems he was having during Wimbledon. Serena won the women's singles title, and partnered with Venus to win the women's doubles title.