diff --git a/tensorflow/compiler/tests/BUILD b/tensorflow/compiler/tests/BUILD
index 77cd3dc074c..3018fb5f857 100644
--- a/tensorflow/compiler/tests/BUILD
+++ b/tensorflow/compiler/tests/BUILD
@@ -346,6 +346,8 @@ tf_xla_py_test(
     python_version = "PY3",
     tags = [
         "no_pip",  # TODO(b/149738646): fix pip install so these tests run on kokoro pip
+        # TODO(b/151948649): Fails on 2020-03-19.
+        "notsan",
     ],
     deps = [
         ":xla_test",
@@ -912,6 +914,8 @@ tf_xla_py_test(
     shard_count = 10,
     tags = [
         "no_pip",  # TODO(b/149738646): fix pip install so these tests run on kokoro pip
+        # TODO(b/151948649): Fails on 2020-03-19.
+        "notsan",
     ],
     deps = [
         ":xla_test",
@@ -1548,6 +1552,8 @@ cuda_py_test(
     tags = [
         "no_pip",  # TODO(b/149738646): fix pip install so these tests run on kokoro pip
         "no_rocm",
+        # TODO(b/151948649): Fails on 2020-03-19.
+        "notsan",
     ],
     xla_enable_strict_auto_jit = False,
     xla_enabled = True,
@@ -1573,6 +1579,8 @@ cuda_py_test(
     tags = [
         "no_pip",  # TODO(b/149738646): fix pip install so these tests run on kokoro pip
         "no_rocm",
+        # TODO(b/151948649): Fails on 2020-03-19.
+        "notsan",
     ],
     xla_enable_strict_auto_jit = False,
     xla_enabled = True,
@@ -1764,6 +1772,8 @@ tf_xla_py_test(
     python_version = "PY3",
     tags = [
         "no_pip",  # TODO(b/149738646): fix pip install so these tests run on kokoro pip
+        # TODO(b/151948649): Fails on 2020-03-19.
+        "notsan",
     ],
     deps = [
         ":xla_test",
diff --git a/tensorflow/compiler/xrt/tests/BUILD b/tensorflow/compiler/xrt/tests/BUILD
index 2f1faf1cdf1..918c802604a 100644
--- a/tensorflow/compiler/xrt/tests/BUILD
+++ b/tensorflow/compiler/xrt/tests/BUILD
@@ -58,6 +58,10 @@ tf_cc_test(
         "--xla_test_device=XLA_CPU",
         "--xla_platform=CPU",
     ],
+    tags = [
+        # TODO(b/151948649): Fails on 2020-03-19.
+        "notsan",
+    ],
     deps = [
         ":raw_api_test_lib",
         "//tensorflow/compiler/jit:xla_cpu_device",