The provided text discusses the performance of Malaysian independent shuttler Soong Joo Ven at the Korea Masters badminton tournament. Here's a summary:

1. **Performance Against Defending Champion:**
   - Soong Joo Ven, the world No. 79, delivered a remarkable performance by defeating defending champion Jeon Hyeok Jin in the round of 16.
   - He came from behind to win 7-21, 21-14, 21-17, marking his first victory in four meetings against Jeon Hyeok Jin.

2. **Upcoming Match Against Kento Momota:**
   - Joo Ven's win earned him a quarter-final rematch with Japan's Kento Momota, a two-time world champion.
   - He had faced Momota once before in 2012, narrowly losing at the Asian Junior Championships.
   - Despite Momota's recent struggles, Joo Ven sees him as a formidable opponent and looks forward to the challenge.

3. **Other Malaysian Players' Performances:**
   - Last week's KL Masters winner Leong Jun Hao secured a place in the quarter-finals.
   - In men's doubles, Goh Sze Fei-Nur Izzuddin Rumsani advanced to the quarter-finals, facing reigning world champions Kang Min Hyuk-Seo Seung Jae.
   - Malaysian prospects in mixed doubles also look promising, with several pairs advancing to the quarter-finals.

4. **Joo Ven's Reflection on the Victory:**
   - Soong Joo Ven expressed satisfaction with his win over the defending champion on his home turf.
   - He acknowledged a close relationship with Jeon Hyeok Jin, who remains one of the best Korean men's singles players despite struggling with injuries.

5. **Kento Momota's Performance:**
   - Kento Momota, playing in his first international event in three months, showed no signs of rustiness, defeating Germany's Kai Schaefer.

Overall, the text provides updates on the Korea Masters badminton tournament, highlighting significant performances by Malaysian players, particularly Soong Joo Ven's victory over the defending champion and his upcoming match against Kento Momota.