Tennis Is Back as World Team Tennis Began Sunday at Greenbrier

SI's Jon Wertheim shares his insight into the World Team Tennis bubble

In the summer of the coronavirus pandemic, all sports are making moves to resume play. The "bubble" system implemented by the NBA has made its way into the world of tennis as World TeamTennis began matches last Sunday at Greenbrier. SI senior writer Jon Wertheim shares his insight into the resumption of World TeamTennis and how the bubble works in practice.