Article continues below advertisementOK! can reveal David and Victoria Beckham have been forced into a careful legal balancing act when publicly addressing their estranged son Brooklyn Beckham, with insiders revealing they must avoid tagging him online to prevent potential legal fallout.Former England soccer captain David, 50, and his fashion designer wife, Victoria, 51, marked Brooklyn's recent 27th birthday with separate Instagram posts - but notably did not tag his social media account.