diff --git a/src/main/java/us/myles/ViaVersion/ViaVersionPlugin.java b/src/main/java/us/myles/ViaVersion/ViaVersionPlugin.java
index 91dd2d614..daa3e2af7 100644
--- a/src/main/java/us/myles/ViaVersion/ViaVersionPlugin.java
+++ b/src/main/java/us/myles/ViaVersion/ViaVersionPlugin.java
@@ -233,6 +233,13 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI, ViaVe
         return portedPlayers.get(player.getUniqueId()).get(ProtocolInfo.class).getProtocolVersion();
     }
 
+    @Override
+    public int getPlayerVersion(@NonNull UUID uuid) {
+        if (!isPorted(uuid))
+            return ProtocolRegistry.SERVER_PROTOCOL;
+        return portedPlayers.get(uuid).get(ProtocolInfo.class).getProtocolVersion();
+    }
+
     @Override
     public boolean isPorted(UUID playerUUID) {
         return portedPlayers.containsKey(playerUUID);
@@ -257,7 +264,7 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI, ViaVe
 
     @Override
     public void sendRawPacket(UUID uuid, ByteBuf packet) throws IllegalArgumentException {
-        if (!isPorted(uuid)) throw new IllegalArgumentException("This player is not on 1.9");
+        if (!isPorted(uuid)) throw new IllegalArgumentException("This player is not controlled by ViaVersion!");
         UserConnection ci = portedPlayers.get(uuid);
         ci.sendRawPacket(packet);
     }
diff --git a/src/main/java/us/myles/ViaVersion/api/ViaVersionAPI.java b/src/main/java/us/myles/ViaVersion/api/ViaVersionAPI.java
index 49182fa1b..89d84144e 100644
--- a/src/main/java/us/myles/ViaVersion/api/ViaVersionAPI.java
+++ b/src/main/java/us/myles/ViaVersion/api/ViaVersionAPI.java
@@ -25,6 +25,14 @@ public interface ViaVersionAPI {
      */
     int getPlayerVersion(Player player);
 
+    /**
+     * Get protocol number from a player
+     *
+     * @param uuid UUID of a player
+     * @return Protocol ID, For example (47=1.8-1.8.8, 107=1.9, 108=1.9.1)
+     */
+    int getPlayerVersion(UUID uuid);
+
     /**
      * Is player using 1.9?
      *
diff --git a/src/main/java/us/myles/ViaVersion/boss/ViaBossBar.java b/src/main/java/us/myles/ViaVersion/boss/ViaBossBar.java
index 24eacea57..47abd63ae 100644
--- a/src/main/java/us/myles/ViaVersion/boss/ViaBossBar.java
+++ b/src/main/java/us/myles/ViaVersion/boss/ViaBossBar.java
@@ -11,6 +11,7 @@ import us.myles.ViaVersion.api.boss.BossBar;
 import us.myles.ViaVersion.api.boss.BossColor;
 import us.myles.ViaVersion.api.boss.BossFlag;
 import us.myles.ViaVersion.api.boss.BossStyle;
+import us.myles.ViaVersion.api.protocol.ProtocolVersion;
 import us.myles.ViaVersion.api.type.Type;
 import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
 
@@ -143,7 +144,7 @@ public class ViaBossBar implements BossBar {
     }
 
     private void sendPacket(UUID uuid, ByteBuf buf) {
-        if (!ViaVersion.getInstance().isPorted(uuid)) {
+        if (!ViaVersion.getInstance().isPorted(uuid) || !(ViaVersion.getInstance().getPlayerVersion(uuid) >= ProtocolVersion.V1_9)) {
             players.remove(uuid);
             return;
         }