WATCH: Serena Williams TRAINS as she prepares for the US Open BEFORE retirement. 🚨 ENJOYING our content? Don't forget to SUBSCRIBE ❗ 🔥 Looking for Sports Videos in Spanish? Check out our Spanish channel. 👇 @TJSports - https://www.youtube.com/tjsports Follow TJ Sports USA on Social Media - ● IG: https://www.instagram.com/TJSportsUSA ● FB: … [Read more...]