Bianca Andreescu beats Serena Williams to win her first US Open and grand slam title

New York (CNN)Bianca Andreescu just doesn’t know how to lose a tennis match these days while Serena Williams suddenly is struggling to win a grand slam final. “I was just thinking, honestly at that point, ‘Wow, this is terrible,’” a disheartened Williams told reporters. “Like, ‘You got to play better. I have to do better.’ I just couldn’t go down like that, so I just wanted to play a little bit better.” It was indeed better but not enough to …