Career
Lejnieks made his Association of Tennis Professionals debut in 2008 Saint St. Petersburg Open where he defeated Russian Alexandre Kudryavtsev in the first round. In the second round he lost to Nr.3 seed Fernando Verdasco. After the tournament he reached a career-high 347 position in the Association of Tennis Professionals rating.
He retired at the age of 23 years in June 27, 2011, stating that lack of motivation and previous injuries forced him to do southern
Singles = Wins = Runners-up Doubles.