Japan gambled by resting top-ranked Kento Momota and nearly paid the price, suffering a huge scare before battling back to beat Russia 3-2 in their Sudirman Cup opener on Monday. Shanghai: Japan gambled by resting top-ranked Kento Momota and nearly paid the price, suffering a huge scare before battling back to beat Russia 3-2 in their Sudirman Cup opener on …