Defending champions make confident start at para badminton world championships South Korea's Lee Sam-seop began his pursuit of a second consecutive title with a convincing win over Aslan Sahin of Turkey on the opening day of the Para Badminton World Championships in Ulsan. Lee produced a commanding display in the men’s singles WH 1 classification with a 21-6, 21-8 win in Group A at the Dongchun Gymnasium. Kim Jung-jun, the world number one in the men’s WH2 singles, also started with a victory as he beat Switzerland's Luca Olgiati. The South Korean player is also bidding to...