LONDON (AP) — When it came time to receive his knighthood, soccer great David Beckham knew what to do. He bent his knee like, well, Beckham. King Charles III tapped his shoulders with the blade of a sword and “Becks” was transformed to Sir David Beckham. “This is without doubt my proudest moment,” Beckham said after Tuesday’s ceremony at Windsor Castle. “I’ve been very obviously lucky in my career to have won what I’ve won and done what I’ve done, but to receive an honor like this, of a knight,