David Beckham’s former personal assistant Rebecca Loos is standing by her claims that she previously had an affair with the soccer superstar over 20 years ago. In a new interview with “60 Minutes” Australia published March 30, the 47-year-old doubled down on her previous accusations, recalling to the outlet how Beckham allegedly made his first move on her at a nightclub while his wife, Victoria Beckham, was out of town. Beckham has previously denied his former assistant’s claims, calling them “l