World number one Novak Djokovic cries out after he bowed from his Adria Tour with victory over German Alexander Zverev before home fans.
The 4-0 1 4-2 win sent player Serb Filip Krajinovic into the last.
Djokovic’s event – the first top men’s tennis since it was suspended by coronavirus – pulled in 4,000 fans.
“I am simply overpowered by feeling since this helps me to remember my adolescence,” he said as the Belgrade swarm gave him an overwhelming applause.
“It’s been an enthusiastic barely any days and I need to thank each and every individual who made this conceivable. The significant thing after this match is that we have one of our own in the last. I love all of you and thank you such a great amount for turning up.”
Djokovic, 33, set up the competition to assist players with returning to coordinate wellness following half a month without rivalry.
Players were part into two gatherings of eight and played each other in a cooperative organization, with the two gathering pioneers contending in a last later on Sunday.
Players need four matches to dominate a set, with a tie-break at 3-3, and matches are best of three sets.
Djokovic, Krajinovic and Zverev all won two of their matches and five sets each, yet Krajinovic had the best games differential.
The 28-year-old world number 32 will confront either Austrian Dominic Thiem, positioned third on the planet, or Bulgaria’s Grigor Dimitrov in the last.
The following leg happens in Zadar, Croatia from 20 June however the competition’s third leg, booked for Montenegro, has been dropped on the grounds that Serbian residents are restricted from entering the nation in the midst of the coronavirus pandemic.
The last occasion is in Bosnia-Herzegovina in July.
A few top 10 players are likewise contending in the Ultimate Tennis Showdown, an occasion made by Serena Williams’ mentor Patrick Mouratoglou in Nice, France.
Matches are being held without onlookers.
Australian 20-year-old Alexei Popyrin beat France’s Elliot Benchetrit in the opener. Italian world number eight Matteo Berrettini crushed Dustin Brown and Feliciano Lopez, Stefanos Tsitsipas and David Goffin are among those yet to play.
The ordinary ATP Tour is suspended until in any event 31 July.