The Vietnam Football Federation confirmed that striker Nguyen Xuan Son suffered a hamstring injury during the September 26 win over the Philippines. An examination in Indonesia put his expected recovery at four to six weeks, ruling him out of the rest of the 2026 FIFA ASEAN Cup.

VFF said he felt pain after a challenge, continued briefly, then stopped while accelerating and had to leave the pitch. Coach Kim Sang-sik agreed to his request to return to Vietnam for treatment. Four to six weeks is a medical estimate, not a fixed return date.