diff --git a/config/formats.js b/config/formats.js
index 01082a7c5e..d81f2581c9 100644
--- a/config/formats.js
+++ b/config/formats.js
@@ -873,6 +873,9 @@ let Formats = [
 		forcedLevel: 50,
 		ruleset: ['Pokemon', 'Species Clause', 'Nickname Clause', 'Evasion Moves Clause', 'OHKO Clause', 'Sleep Clause Mod', 'HP Percentage Mod', 'Cancel Mod', 'Team Preview'],
 		banlist: ['Illegal', 'Unreleased', 'Uber'],
+		onBegin: function () {
+			if (this.rated) this.add('html', `<div class="broadcast-red"><strong>Let's Go OU is currently suspecting Mew! For information on how to participate check out the <a href="https://www.smogon.com/forums/threads/3645963/">suspect thread</a>.</strong></div>`);
+		},
 	},
 	{
 		name: "[Gen 7 Let's Go] Random Battle",