RIO DE JANEIRO: Chan Peng Soon-Goh Yiu Ling are within touching distance of a Rio Olympics medal after advancing to the semi-finals at Pavilion 4, Riocentro on Sunday.
The Malaysian mixed pair beat Poland's Robert Mateusiak-Zieba Nadiezda 21-17, 21-10 in the quarter-finals.
A win will see the Malaysians playing either China's Chen Yu-Ma Jin or South Korea's Ko Sung Hyun-Kim Ha Na in the semi-finals.
The China-South Korea match was scheduled for later on Sunday.
Seeking to make the semi-finals on Monday will be men's doubles Goh V Shem-Tan Wee Kiong and women's pair Vivian Hoo Kah Mun-Woon Khe Wei.
Sunday's knockout stage draw saw V Shem-Wee Kioong paired with South Korea's top seeds Lee Yong Dae-Yoo Yeon Seong in the last eight.
V Shem-Wee Kiong drew the Koreans as Yong Dae-Yeon Seong finished second in their group. The Koreans lead 5-1 in their previous encounters with the Malaysians.
A win will see V Shem-Wee Kiong facing either China's Chai Biao-Hong Wei or Russia's Vladimir Ivanov-Ivan Sozonov in the semi-finals.
Vivian-Khe Wei, who finished second in their group, will face Japanese top seeds Misaki Matsutomo-Ayaka Takahashi in their quarter-final. The Malaysians have never won any of their previous seven meetings against the World No 1 pair.
The winners will take on either South Korea's Jung Kyung Eun-Shin Seung Chan or Eefje Muskens-Selena Peik of the Netherlands.