SI Insider: This Is the Final Week of World TeamTennis' Stint at Greenbrier

Video Rating:
TV-G
Video Duration:
1:49

World TeamTennis wraps up its successful run at the Greenbrier resort with a few standout players showing off a career resurgence. Players like Kim Clijsters, Jack Sock, and Genie Bouchard have had a successful time in the Greenbrier bubble. Sports Illustrated senior writer Jon Wertheim shares his thoughts on World TeamTennis' run and how other leagues can look to the bubble system they implemented successfully.