diff --git a/forge-ai/src/main/java/forge/ai/ability/SacrificeAi.java b/forge-ai/src/main/java/forge/ai/ability/SacrificeAi.java
index 8ba80021120..8eae5eca28e 100644
--- a/forge-ai/src/main/java/forge/ai/ability/SacrificeAi.java
+++ b/forge-ai/src/main/java/forge/ai/ability/SacrificeAi.java
@@ -111,7 +111,10 @@ public class SacrificeAi extends SpellAbilityAi {
         final String valid = sa.getParam("SacValid");
         if (defined == null) {
             // Self Sacrifice.
-        } else if (defined.equals("Player") || (defined.equals("Opponent") && !sa.isTrigger())) {
+        } else if (defined.equals("Player")
+                || ((defined.equals("Player.Opponent") || defined.equals("Opponent")) && !sa.isTrigger())) {
+            // is either "Defined$ Player.Opponent" and "Defined$ Opponent" obsolete?
+            
             // If Sacrifice hits both players:
             // Only cast it if Human has the full amount of valid
             // Only cast it if AI doesn't have the full amount of Valid