Watch Now Rio Open debuts clay court line calling Features Rio 2020 Tournament director Luiz Carvalho explains how the Rio Open has become the first clay court tournament to introduce electronic line calling on Tour. Match Insider Live Matches Stats Insights Head to Head label.videoPage.tab.6.title Rio Open debuts clay court line calling Features Rio 2020 Tournament director Luiz Carvalho explains how the Rio Open has become the first clay court tournament to introduce electronic line calling on Tour. Tennis TV App Download the app and watch on the go Install IOS App Install Android App Stats Insights Head to Head
