diff --git a/core/src/main/java/io/grpc/internal/PickFirstLeafLoadBalancer.java b/core/src/main/java/io/grpc/internal/PickFirstLeafLoadBalancer.java
index cd9ff9ab58c..f8f5c94f5ba 100644
--- a/core/src/main/java/io/grpc/internal/PickFirstLeafLoadBalancer.java
+++ b/core/src/main/java/io/grpc/internal/PickFirstLeafLoadBalancer.java
@@ -496,7 +496,7 @@ private void shutdownRemaining(SubchannelData activeSubchannelData) {
    */
   @Override
   public void requestConnection() {
-    if (!addressIndex.isValid() || rawConnectivityState == SHUTDOWN) {
+    if (!addressIndex.isValid() || rawConnectivityState == SHUTDOWN || reconnectTask != null) {
       return;
     }
 
diff --git a/core/src/test/java/io/grpc/internal/PickFirstLeafLoadBalancerTest.java b/core/src/test/java/io/grpc/internal/PickFirstLeafLoadBalancerTest.java
index cb73d17d682..eb7b40257c0 100644
--- a/core/src/test/java/io/grpc/internal/PickFirstLeafLoadBalancerTest.java
+++ b/core/src/test/java/io/grpc/internal/PickFirstLeafLoadBalancerTest.java
@@ -1446,6 +1446,11 @@ public void updateAddresses_disjoint_transient_failure() {
     loadBalancer.acceptResolvedAddresses(
         ResolvedAddresses.newBuilder().setAddresses(newServers).setAttributes(affinity).build());
 
+    if (serializeRetries) {
+      inOrder.verify(mockSubchannel3, never()).start(stateListenerCaptor.capture());
+      forwardTimeByBackoffDelay();
+    }
+
     // subchannel 3 still attempts a connection even though we stay in transient failure
     assertEquals(TRANSIENT_FAILURE, loadBalancer.getConcludedConnectivityState());
     inOrder.verify(mockSubchannel3).start(stateListenerCaptor.capture());