diff --git a/tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc b/tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc
index a704018e17..6cbdf0b469 100644
--- a/tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc
+++ b/tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc
@@ -32,12 +32,6 @@ char kTSanDefaultSuppressions[] =
     // https://code.google.com/p/webrtc/issues/detail?id=2080
     "race:rtc_base/logging.cc\n"
 
-    // rtc_pc_unittests
-    // https://code.google.com/p/webrtc/issues/detail?id=2079
-    "race:rtc_base/test_client.cc\n"
-    "race:rtc_base/virtual_socket_server.cc\n"
-    "race:talk/p2p/base/stun_server_unittest.cc\n"
-
     // third_party/usrsctp
     // TODO(jiayl): https://code.google.com/p/webrtc/issues/detail?id=3492
     "race:user_sctp_timer_iterate\n"
@@ -50,6 +44,10 @@ char kTSanDefaultSuppressions[] =
     "deadlock:usrsctp_conninput\n"
     "deadlock:usrsctp_connect\n"
 
+    // data race in usrsctp
+    // https://crbug.com/webrtc/9850
+    "race:sctp_process_cookie_existing\n"
+
     // Potential deadlocks detected after roll in r6516.
     // https://code.google.com/p/webrtc/issues/detail?id=3509
     "deadlock:webrtc::test::UdpSocketManagerPosixImpl::RemoveSocket\n"