The Duchess of Sussex watched in the crowd as her bestie lost the final to 19-year-old Canadian tennis pro Bianca Andreescu on Saturday in New York City.
Markle sat in the player's box alongside some of Serena's most cherished people which included her mom, Oracene Price, sister, Venus Williams, husband, Alexis Ohanian, and favorite designer friend, Anna Wintour.
Meghan kept it classy and casual wearing a denim dress and sweater with her dark hair freely flowing.
Despite Serena's loss, Markle seemed to enjoy her day back in the States watching her friend.
The game was intense at times with the U.S. tennis player almost coming back at the end.
Meghan's wedding ring to Prince Harry was on full display and shined every time she cheered on her tennis BFF.
Serena took the L like a champ though, unlike her loss against 20-year-old Naomi Osaka in 2018.
Bianca Andreescu is the first Canadian ever to win the title. She also got a hefty prize in the form of a $3.85 million check.
This has still been a monumental tournament for the superstar.
As The Blast reported, Serena won her 100th U.S. Open match earlier this week and had half of Hollywood in the crowd!
A-listers like Priyanka Chopra, Martha Stewart, Tiger Woods, Amy Schumer, Justin Theroux, "Queer Eye" star Jonathan Van Ness and many more invaded the stadium to witness her accomplishment.