 Morgan Riddle is Fritz's girlfriend... Friend. Girlfriend. And a fashion influencer. Oh, that's where Trev knows her from. Yes. She issued a statement Tuesday after her Instagram post went viral Monday following Fritz's five-set comeback victory over Alexander Zverev in the fourth round of Wimbledon. In the first post published during the match, Riddle wrote, In the second, Riddle posted a video of herself celebrating after the match and wrote...