Is Meghan Markle a jinx? That's what some tennis fans are saying after her friend Serena Williams lost to 19-year-old sensation Bianca Andreescu Saturday at the U.S. Open. It's the third time the duchess has watched Williams go down in defeat from the stands. But Williams' upset was just one part of a whirlwind weekend for Meghan. Just hours after Meghan landed in New York on Friday, she headed to a yoga studio in the West Village. The duchess took a hot yoga class with 60 men and women.