Novak Djokovic has been awarded one of his country's top state honour, the Order of the Karadjordje's Star, First Class.
Established in 1904 by King Peter, the prestigious medal is a decoration awarded in four degrees.
The 24-year-old has won five Grand Slam titles, four in the last 12 months, and has risen to world number one in the rankings.
"Novak deserves the medal for special merits in representing Serbia," said Serbian president Boris Tadic.
Djokovic will formally receive the medal today at a ceremony marking Serbia's statehood day.