Father, Krassimir, is his coach and a former pro player; brother, George.
Started playing tennis at age 6 because his father, uncle and grandfather played.
Inspired as a youngster by watching VHS tapes of his father playing.
"My family has made the biggest impact in my life," says Lazarov. "They have sacrificed way too much in order for me to play the sport and I really want to make them proud one day."
Favourite shot is forehand, surface is clay and city on tour is Doha.
Tennis idols are countryman Grigor Dimitrov and World No. 1 Rafael Nadal.
Also enjoys boxing and football. Favourite football team is Real Madrid.
Favourite athlete is basketball legend Michael Jordan.
Favourite book is The Da Vinci Code by Dan Brown.
Favourite actor is Will Smith, movie is The Wolf of Wall Street and TV show is Game of Thrones.
Says that his best quality is dedication and worst quality is his big ego.