JAKE PAUL: From rapping to elaborate pranks, Jake Paul's YouTube videos are viral sensations, amassing more than seven billion views. Now, with no experience at all, Paul has decided to become a full-time professional boxer.CASTER SEMENYA & INTERSEX ATHLETES: After years of being forced by track's governing body, World Athletics, to take hormone therapy to suppress her body's natural testosterone, Olympic gold medalist middle distance runner Caster Semenya launched a lawsuit claiming they violated her human rights.OKSANA MASTERS UPDATE: Born an orphan in Ukraine during the Chernobyl nuclear disaster, Oksana Masters has drawn from the trauma of her childhood to fuel an astonishing, record-setting Paralympic career in her adopted home of the United States.