Nicknamed "Bogie"…Father, Alex, Sr., was a former Soviet national tennis coach who worked with Larisa Neiland, Yevgeny Kafelnikov and Andrei Medvedev…Mother, Natalie, coaches high school tennis…Older sister, Katia, was a top player on University of Miami women's tennis team and US-ranked under-18…Brother, Boris, is soon to enter college… Grandfather was a gold medalist in Handball as a captain/coach for the Soviet Union…Family moved to Miami in 1992 after living in Mexico for a few years…His father worked at the Montana Tennis Club in Miami for seven years before going back to Russia…During junior career, won the USTA National championships in 1998 (d. Roddick) and finished as No. 1-ranked USTA under-18 in 2000. Planned to play collegiately at Texas Christian University until he won the USTA Boys' 18s Nationals in Kalamazoo, Mich. in August 2001...By winning title, he earned a wild card into the US Open and turned pro…Named Most Improved Player of the Year in the 2011 ATP World Tour Awards presented by Moët & Chandon after rising from No. 166 in the South African Airways ATP Rankings at the end of 2010 to No. 33 in November 2011...Married to wife, Luana, and has one son, Maddox.