diff --git a/rllib/agents/a3c/a3c.py b/rllib/agents/a3c/a3c.py
index e1eafff71..0cffedf2e 100644
--- a/rllib/agents/a3c/a3c.py
+++ b/rllib/agents/a3c/a3c.py
@@ -54,11 +54,6 @@ def get_policy_class(config):
 def validate_config(config):
     if config["entropy_coeff"] < 0:
         raise DeprecationWarning("entropy_coeff must be >= 0")
-    if config["sample_async"] and config["use_pytorch"]:
-        config["sample_async"] = False
-        logger.warning(
-            "The sample_async option is not supported with use_pytorch: "
-            "Multithreading can be lead to crashes if used with pytorch.")
 
 
 def execution_plan(workers, config):