Malaysia’s Thailand Masters campaign ended on Friday after Ng Tze Yong and Leong Jun Hao both crashed out in the quarter-finals.

Ng exited after a 19-21, 21-23 defeat against Lee Cheuk Yiu, and Leong Jun Hao followed him out when he was tamed 19-21, 11-21 by India’s Lakshya Sen

For Ng, it was a chance wasted having held comfortable leads in both games that he ended up squandering to lose.

The Malaysian tried the same measured approach in this contest like how he did against top seed Chou Tien-chen in the second round, but he was facing a far more aggressive opponent this time.

Ng led all the way until the 19th point, but Lee stayed in the hunt through his powerful attacks thanks to the Malaysian's lofty returns to the baseline.

Even a 15-8 lead in the second game couldn't give Ng the impetus to get past the finish line, with the Hong Kong star pegging him back before sealing the win in straight games when the Malaysian pushed the shuttle wide in deuce.

Leong also exited the Super 500 event after failing to convert his dominance in the first game.

The world number 65 allowed a healthy 16-10 lead to dissipate in the opener which he lost, and in the second game Sen dominated comfortably to win after 41 minutes.