diff --git a/litellm/router.py b/litellm/router.py
index 3e9ab3ec054..9da5e0522a6 100644
--- a/litellm/router.py
+++ b/litellm/router.py
@@ -871,7 +871,7 @@ class Router:
                 not hasattr(self, "lowesttpm_logger_v2")
                 or self.lowesttpm_logger_v2 is None
             ):
-                self.lowesttpm_logger_v2 = LowestTPMLoggingHandler_v2(
+                self.lowesttpm_logger_v2: LowestTPMLoggingHandler_v2 = LowestTPMLoggingHandler_v2(
                     router_cache=self.cache,
                     routing_args=routing_strategy_args,
                 )
@@ -885,7 +885,7 @@ class Router:
                 not hasattr(self, "lowestlatency_logger")
                 or self.lowestlatency_logger is None
             ):
-                self.lowestlatency_logger = LowestLatencyLoggingHandler(
+                self.lowestlatency_logger: LowestLatencyLoggingHandler = LowestLatencyLoggingHandler(
                     router_cache=self.cache,
                     routing_args=routing_strategy_args,
                 )
@@ -896,7 +896,7 @@ class Router:
             or routing_strategy == RoutingStrategy.COST_BASED
         ):
             if not hasattr(self, "lowestcost_logger") or self.lowestcost_logger is None:
-                self.lowestcost_logger = LowestCostLoggingHandler(
+                self.lowestcost_logger: LowestCostLoggingHandler = LowestCostLoggingHandler(
                     router_cache=self.cache,
                     routing_args={},
                 )
diff --git a/tests/test_litellm/proxy/test_route_llm_request.py b/tests/test_litellm/proxy/test_route_llm_request.py
index 96870b6cc77..e6c03ce19cb 100644
--- a/tests/test_litellm/proxy/test_route_llm_request.py
+++ b/tests/test_litellm/proxy/test_route_llm_request.py
@@ -151,8 +151,8 @@ async def test_route_request_with_router_settings_override():
             "num_retries": 5,
             "timeout": 30,
             "model_group_retry_policy": {"gpt-3.5-turbo": {"RateLimitErrorRetries": 3}},
-            # These settings should be ignored (not in per_request_settings list)
             "routing_strategy": "least-busy",
+            # This setting should be ignored (not in per_request_settings list)
             "model_group_alias": {"alias": "real_model"},
         },
     }
@@ -171,8 +171,9 @@ async def test_route_request_with_router_settings_override():
     assert call_kwargs["model_group_retry_policy"] == {
         "gpt-3.5-turbo": {"RateLimitErrorRetries": 3}
     }
+    # Verify routing_strategy was merged (now supported per-request)
+    assert call_kwargs["routing_strategy"] == "least-busy"
     # Verify unsupported settings were NOT merged
-    assert "routing_strategy" not in call_kwargs
     assert "model_group_alias" not in call_kwargs
     # Verify router_settings_override was removed from data
     assert "router_settings_override" not in call_kwargs