diff --git a/src/main/java/fr/aminelouveaau/cartes/model/Card.java b/src/main/java/fr/aminelouveaau/cartes/model/Card.java
index 84416c3..1896b1e 100644
--- a/src/main/java/fr/aminelouveaau/cartes/model/Card.java
+++ b/src/main/java/fr/aminelouveaau/cartes/model/Card.java
@@ -3,6 +3,8 @@ package fr.aminelouveaau.cartes.model;
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
+import java.util.Objects;
+
 public class Card {
     private final Shape shape;
     private final Number number;
@@ -20,4 +22,22 @@ public class Card {
     public Number getNumber() {
         return number;
     }
+
+    @Override
+    public String toString() {
+        return number + " of " + shape;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Card card = (Card) o;
+        return getShape() == card.getShape() && getNumber() == card.getNumber();
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getShape(), getNumber());
+    }
 }
diff --git a/src/main/java/fr/aminelouveaau/cartes/service/GameService.java b/src/main/java/fr/aminelouveaau/cartes/service/GameService.java
index 4bc5d87..b10f91e 100644
--- a/src/main/java/fr/aminelouveaau/cartes/service/GameService.java
+++ b/src/main/java/fr/aminelouveaau/cartes/service/GameService.java
@@ -4,6 +4,8 @@ import fr.aminelouveaau.cartes.model.Card;
 import fr.aminelouveaau.cartes.model.Number;
 import fr.aminelouveaau.cartes.model.Shape;
 import fr.aminelouveaau.cartes.model.api.SortingResult;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Service;
@@ -15,6 +17,9 @@ import java.util.stream.Collectors;
 
 @Service
 public class GameService {
+    private final Logger logger = LoggerFactory.getLogger(GameService.class);
+
+
     @Value("${cards.hand.number}")
     private Integer cardHandNumber;
 
@@ -74,10 +79,13 @@ public class GameService {
     }
 
     public SortingResult sortHand(List<Card> hand) {
+        List<Card> sortedHand = hand.stream().sorted((o1, o2) -> comparator.compare(o1, o2)).collect(Collectors.toList());
+        logger.info("Hand : " + hand);
+        logger.info("Sorted hand : " + sortedHand);
         return new SortingResult(
                 shapeOrder,
                 numberOrder,
-                hand.stream().sorted((o1, o2) -> comparator.compare(o1, o2)).collect(Collectors.toList())
+                sortedHand
         );
     }
 }