This year the US Open is looking to make rain delays a thing of the past, having finally unveiled a retractable roof over the world’s largest tennis venue, Arthur Ashe Stadium.

It was a massive undertaking requiring two years under construction, and it was inaugurated a few weeks ago just in time for this year’s final Grand Slam.

CNN Open Court gives you some fast facts on everything you need to know about Arthur Ashe Stadium’s new retractable roof.