 tennis fans 12 years or older will be required to show proof of a COVID-19 vaccine and this is in order to attend the U.S. Open Tournament officials announced this on Friday. And World Number 3, Stefano and Sita Paz said earlier this month he would only get the COVID-19 vaccine if it became mandatory to compete in tennis and the tournament operated without fans in 2020. Hello, hope you enjoyed the news. Please do subscribe to our YouTube channel and don't forget to hit the notification button so you get notified about fresh news updates.