Japan's Kento Momota was once badminton's undisputed king but his career has gone into free fall ever since a car crash more than two years ago which left him badly hurt. There are now severe doubts that the 27-year-old former two-times world champion -- who was embroiled in a gambling scandal earlier in his career -- will ever reach the top again. Momota's world was turned upside down in January 2020 when the vehicle taking him to Kuala Lumpur airport crashed hours after he won the Malaysia Masters, killing the driver and leaving the player with a fractured eye socket.