Here are reputable sports rehabilitation / sports-medicine clinics and centers across Vietnam, grouped by city (brief services and contact/source links included):

Hanoi

• Tam Anh Hospital — Sports Medicine & Rehabilitation Center: multi-disciplinary sports-medicine services, imaging (MRI/CT), advanced surgical and rehab technologies for athletes and active people. (vietnam.vn)
• Hanoi Physio Sport — private sports physiotherapy clinic (sports physio, manual therapy, individualized rehab programs; English contact options listed). (hanoiphysiosport.com)

Ho Chi Minh City

• RTD Rehab (sports injury treatment & rehabilitation) — leading sports rehab provider in HCMC; has cooperation with the Ho Chi Minh City National Sports Training Center for athlete care. (worldysnews.com)
• (Also consider major hospital sports/rehab departments in HCMC for complex cases — many offer multidisciplinary sports medicine teams and imaging.)

Da Nang / Central Vietnam

• HandsViet (HandsViet) — Sports Medicine & Musculoskeletal / Rehabilitation center in Da Nang; focused on sports injuries, physiotherapy and advanced rehab; recognized regionally. (khamdinhkydanang.com)
• Rehabilitation Department — 199 Hospital (Da Nang): established rehab unit offering electrotherapy, manual techniques, exercise therapy and sports rehabilitation. (khamdinhkydanang.com)

Other options / notes

• Many large private hospitals and university hospitals in Vietnam now have sports medicine or physical medicine & rehabilitation departments (useful for advanced imaging, surgery + post-op rehab). Examples include leading private hospital groups and provincial rehabilitation hospitals. (vietnam.vn)
• For massage/soft-tissue work and shorter recovery programs, reputable private physiotherapy clinics (city-specific) are common — check clinic websites or local expat groups for up-to-date reviews. (hanoiphysiosport.com)

If you want, I can:

• find addresses, phone numbers, hours and maps for any of the centers above; or
• search for sports rehab centers in a specific city or neighborhood in Vietnam (Hanoi, HCMC, Da Nang, Hoà Bình, Nha Trang, etc.).