Glasgow Rangers are now chasing a move to sign West Ham United full-back Ben Johnson in January. West Ham defender Ben Johnson is firmly on the radar of Rangers in the January transfer window, after a recent report linked him with a move to Leeds United. The 23-year-old has fallen well down the full-back pecking order under Hammers manager David Moyes over the past year or so, and now his days at the London Stadium could well be numbered. Rangers are the latest club to throw their hat in the ring in the race for Johnson’s signature, according to a report from Football Insider. Johnson has made…