Lee, Lin enjoy routine wins as showdown looms

Malaysia's Lee Chong Wei hits a return to Germany's Marc Zwiebler during their men's singles badminton match at the BWF World Championship in Jakarta, August 12, 2015. REUTERS/Nyimas Laula

(Reuters) - Arch rivals Lee Chong Wei and Lin Dan remained on course for a blockbuster men's singles semi-final showdown at the world championships when they enjoyed routine third round victories in Jakarta on Thursday.

Chinese fifth seed Lin crushed Denmark's Hans-Kristian Vittinghus 21-9 21-13 while Malaysia's Lee was given a more thorough test by Wang Zhengming in his 21-17 21-19 victory.