Tennis star Taylor Fritz and influencer Morgan Riddle have broken up after a nearly six-year-long relationship, Us Weekly can confirm. Fritz and Riddle, both 28, "quietly split over a month ago," a source tells Us. People was first to report the news, claiming on Saturday, April 25, that Riddle ended the relationship with the athlete, currently ranked No. 8 in the world. Later in the afternoon on Saturday, Riddle took to Instagram with a new post, seemingly hinting at the breakup. One of the photos in the carousel shows the influencer wearing a T-shirt that says, "World's best ex-girlfriend.