Flexible Elen Rivas gets in some last minute practice ahead of the London Marathon this weekend

By SARAH BULL Flexible: Elen Rivas limbers up for a gruelling morning run ahead of this weekend's London MarathonShe stunned her Dancing On Ice mentors Torvill and Dean when she demanded the splits be included in her skating routine to show off her flexibility.But Elen Rivas proved she doesn't need the ice rink to display her toned curves as she prepared for a gruelling early morning run