Career
He reached a career high ranking of World Number.10. During the 2012 Thomas Cup quarter-final, he was defeated by Lin Dan from China, but not before he brought it into a rubber game of 21–17, 9–21 and 5–21. The 2014 Thomas Cup finals saw Liew facing off against Takuma Ueda from Japan in a gripping battle to break the tie between Malaysia and Japan, who were even at 2–2 as they entered the decisive third Men"s Singles match.
Liew lost to Ueda after the match went into a rubber game, scoring 21–12, 18–21 and 21–17.
Finals: 3 (3 titles, 0 runners-up).