diff --git a/sdk/servicebus/azure-servicebus/CHANGELOG.md b/sdk/servicebus/azure-servicebus/CHANGELOG.md
index 89eca51ad764..957fa9ac5c98 100644
--- a/sdk/servicebus/azure-servicebus/CHANGELOG.md
+++ b/sdk/servicebus/azure-servicebus/CHANGELOG.md
@@ -7,6 +7,7 @@
 ### Breaking Changes
 
 ### Bugs Fixed
+- Fixed a bug where asynchronous method to add distributed tracing attributes was not being awaited (Issue #28738).
 
 ### Other Changes
 
diff --git a/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_base_handler_async.py b/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_base_handler_async.py
index 328c69c881ab..284f41afed47 100644
--- a/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_base_handler_async.py
+++ b/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_base_handler_async.py
@@ -387,7 +387,7 @@ async def _mgmt_request_response_with_retry(
             **kwargs
         )
 
-    async def _add_span_request_attributes(self, span):
+    def _add_span_request_attributes(self, span):
         return BaseHandlerSync._add_span_request_attributes(  # pylint: disable=protected-access
             self, span
         )
diff --git a/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py b/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py
index ccbdd6e4ab20..b1d43f0f2a7a 100644
--- a/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py
+++ b/sdk/servicebus/azure-servicebus/azure/servicebus/aio/_servicebus_sender_async.py
@@ -257,7 +257,7 @@ async def schedule_messages(
                     schedule_time_utc, send_span, *obj_messages
                 )
             if send_span:
-                await self._add_span_request_attributes(send_span)
+                self._add_span_request_attributes(send_span)
             return await self._mgmt_request_response_with_retry(
                 REQUEST_RESPONSE_SCHEDULE_MESSAGE_OPERATION,
                 request_body,
@@ -375,7 +375,7 @@ async def send_messages(
                 return  # Short circuit noop if an empty list or batch is provided.
 
             if send_span:
-                await self._add_span_request_attributes(send_span)
+                self._add_span_request_attributes(send_span)
 
             await self._do_retryable_operation(
                 self._send,