Spencer Oliver SLAMS the judges scoring after Natasha Jonas vs. Mikaela Mayer! ?? Spencer Oliver is an English former professional boxer and now is a Sky Sports TV & Talksport Radio Broadcaster. Natasha Jonas took a split decision win against Mikaela Mayer to retain the IBF welterweight world championship; Mikaela Mayer and her team think that the result should have gone her way. Natasha Jonas fought in front of a home crowd in Liverpool to take a win over Mikaela Mayer.