--- a/net/minecraft/server/commands/DeOpCommands.java
+++ b/net/minecraft/server/commands/DeOpCommands.java
@@ -39,7 +_,7 @@
             if (playerList.isOp(nameAndId)) {
                 playerList.deop(nameAndId);
                 i++;
-                source.sendSuccess(() -> Component.translatable("commands.deop.success", players.iterator().next().name()), true);
+                source.sendSuccess(() -> Component.translatable("commands.deop.success", nameAndId.name()), true); // Paper - fixes MC-253721
             }
         }
 
