They train together, race together… but how well do they really know each other? 👀 Alex and Gretchen Walsh take on the Sibling Challenge: in and out of the pool! Who’s more calm under pressure? Who spends more time on TikTok? Who forgets their goggles more often? Find out in this fun sister showdown 💥 #Swimming #Challenge #Quiz #Walsh #WorldAquatics ➤ ➤ SUBSCRIBE & FOLLOW ➤➤ ➤ www.youtube.com/@WorldAquatics ➤ https://bit.ly/WorldAquaticsWhatsAppChannel ➤ https://bit.ly/WorldAquaticsInstagram ➤ https://bit.ly/WorldAquaticsFacebook ➤ https://bit.ly/WorldAquaticsTikTok