diff --git a/units/en/unit7/introduction.mdx b/units/en/unit7/introduction.mdx
index 2f0cef2..bd7384f 100644
--- a/units/en/unit7/introduction.mdx
+++ b/units/en/unit7/introduction.mdx
@@ -24,7 +24,7 @@ So today, we’re going to **learn the basics of this fascinating topic of multi
 
 And the most exciting part is that during this unit, you’re going to train your first agents in a multi-agents system: **a 2vs2 soccer team that needs to beat the opponent team**.
 
-And you’re going to participate in **AI vs. AI challenge** where your trained agent will compete against other classmates’ agents every day and be ranked on a [new leaderboard]().
+And you’re going to participate in **AI vs. AI challenge** where your trained agent will compete against other classmates’ agents every day and be ranked on a [new leaderboard](https://huggingface.co/spaces/huggingface-projects/AIvsAI-SoccerTwos).
 
 <figure>
 <img src="https://huggingface.co/datasets/huggingface-deep-rl-course/course-images/resolve/main/en/unit10/soccertwos.gif" alt="SoccerTwos"/>