Sargsian began at the age of seven years with the tennis game and started his professional career in 1995. During his career he was a title in singles and two in a double win. 1996, 2000 and 2004, he participated in the tennis tournaments in the Summer Olympics, but was eliminated each morning.
He is the most successful player of Armenian Davis Cup team. From 1996 up to end of his career in 2006, he graduated in singles and doubles 46 matches, of which he won 35.