Popsugar Celebrity The Royals Meghan Markle Supporting Serena Williams US Open Sept. 2019 Meghan Markle Backs Serena Williams at the US Open, Weeks Before Her Royal Tour of Africa 7 September 2019 by Brea Cubit Image Source: Getty / TIMOTHY A. CLARY Distance isn't keeping Meghan Markle from supporting bestie Serena Williams! On Saturday, the 38-year-old royal attended the US Open in NYC to cheer on the tennis star at Arthur Ashe Stadium. At the event, Meghan glowed in a buttoned denim dress as she smiled in the stands. We last saw Meghan join a tennis crowd in July when she and sister-in-law Kate Middleton hung out at Wimbledon. Meghan's sporty outing comes just a couple of weeks before she takes off on an African tour with Prince Harry and their 4-month-old son Archie. The trio will begin the trip on Sept. 23 in Cape Town before Harry visits Botswana, Angola, and Malawi solo while Meghan stays with Archie. The tour will then conclude on Oct. 2 when the family reunites in Johannesburg. But before the duchess's schedule ramps up, check out photos from her US Open appearance! Related: Meghan Markle Is Just Getting Started — See All the Ways She's Making Change in 2019 Image Source: Getty / TIMOTHY A. CLARY 1 / 4 Image Source: Getty / TIMOTHY A. CLARY 2 / 4 Image Source: Getty / TIMOTHY A. CLARY 3 / 4 Image Source: Getty / TIMOTHY A. CLARY 4 / 4 The RoyalsMeghan MarkleThe British Royals