Bianca Andreescu is not dating anyone right now. In 2019, Andreescu appeared with basketball player Pascal Siakam at a charity gala. That started rumors that Andreescu and Siakam were dating. That is not true.
Andreescu previously was in a relationship with fellow Canadian tennis player Benjamin Sigouin. Andreescu and Sigouin met at a junior tennis tournament where they both ended up champions. They were going out for a short time but eventually split due to conflicting priorities. Andreescu turned pro and Sigouin pursued college tennis.
Sigouin currently plays college tennis at the University of North Carolina, where he is the captain of the tennis team. He is pursuing a degree in exercise and sports administration.
Andreescu won the 2019 US Open title beating Serena Williams. She became the first Canadian ever to win a singles grand slam. She also became the first teenager to win a grand slam title since Maria Sharapova in 2006.