diff --git a/backend/app/services/mls_espn.py b/backend/app/services/mls_espn.py
index 2647ea3..8164880 100644
--- a/backend/app/services/mls_espn.py
+++ b/backend/app/services/mls_espn.py
@@ -29,12 +29,8 @@ from ..teams_mls import MLS_ID_TO_CODE, MLS_TEAMS
 log = logging.getLogger("triplepick.mls")
 
 KST = timezone(timedelta(hours=9))
-UA = {
-    "User-Agent": (
-        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
-        "(KHTML, like Gecko) Chrome/126.0 Safari/537.36"
-    )
-}
+# 주의: ESPN 은 브라우저 위장 UA(풀 Chrome 문자열)를 보내면 WAF 가 403 으로 차단한다
+# (TLS 핑거프린트와 UA 불일치 감지로 추정). httpx 기본 UA 로 보내야 통과 — 헤더 없이 호출.
 
 # 취소로 취급하는 ESPN 상태 (연기 포함 — 보강 일정이 새 이벤트로 재등장)
 _CANCEL_STATUS = {"STATUS_POSTPONED", "STATUS_CANCELED", "STATUS_ABANDONED"}
@@ -94,7 +90,7 @@ def _parse_event(e: dict) -> dict | None:
 
 
 async def _fetch_events(client, dates: str) -> list[dict]:
-    r = await client.get(_sb_url(dates), headers=UA)
+    r = await client.get(_sb_url(dates))
     r.raise_for_status()
     out = []
     for e in r.json().get("events") or []:
@@ -148,7 +144,7 @@ async def _refresh_standings(db) -> bool:
     table: dict[str, dict] = {}
     try:
         async with httpx.AsyncClient(timeout=15) as c:
-            r = await c.get(_standings_url(), headers=UA)
+            r = await c.get(_standings_url())
             r.raise_for_status()
             data = r.json()
         for conf in data.get("children") or []:
@@ -263,7 +259,7 @@ async def _refresh_previews(db, matches: list[Match]) -> int:
                 "odds": _odds_of(rec["_comp"]),
             }
             try:  # 맞대결(h2h)은 summary 1콜 — 실패해도 나머지 프리뷰는 유지
-                r2 = await c.get(_summary_url(rec["espnId"]), headers=UA)
+                r2 = await c.get(_summary_url(rec["espnId"]))
                 r2.raise_for_status()
                 payload["h2h"] = _h2h_of(r2.json())
             except Exception as e:  # noqa: BLE001
@@ -598,7 +594,7 @@ async def fetch_live_mls(m: Match) -> dict:
             _rn = _make_name_resolver(None)  # summary 실패 시 원문 그대로
             try:
                 async with httpx.AsyncClient(timeout=15) as c2:
-                    r2 = await c2.get(_summary_url(rec["espnId"]), headers=UA)
+                    r2 = await c2.get(_summary_url(rec["espnId"]))
                     r2.raise_for_status()
                     sj = r2.json()
                 lineups = _lineups_of(sj)