Djokovic engaged to girlfriend Ristic The world's No. 1 tennis player is getting married. Novak Djokovic announced Wednesday that he and long-time girlfriend Jelena Ristic are engaged. FoxSports Sep 25, 2013 at 1:00a ET [Insert corny joke about how "love" is also a tennis term here.] Novak Djokovic has found a nice way to rebound from losing the US Open final. The No. 1-ranked tennis player and six-time major champion is engaged to longtime girlfriend Jelena Ristic, he announced Wedneday on his Twitter account. Meet my fiancé and future wife :) So happy! Thank you for wonderful wishes #NoleFam and friends! http://t.co/jEfo5fLu8i — Novak Djokovic (@DjokerNole) September 25, 2013 This is the 26-year-old Serb's 100th week at No. 1 in the ATP rankings. He won the Australian Open in January, then was the runner-up at Wimbledon in July, and at the US Open this month, losing to Rafael Nadal in the final. Ristic has been a staple at Djokovic's matches over the years and also heads up his charity, the Novak Djokovic Foundation. The couple have been dating for eight years. And finally, here is an impossibly cute photo of them spooning a dolphin: The Associated Press contributed to this report. Photos via Getty Images.