Novak Djokovic has become the latest tennis player to test positive for the new coronavirus.
Grigor Dimitrov, Borna Coric and Viktor Troicki all revealed they have tested positive for Covid-19 after playing at Djokovic’s Adria Tour competition.
The 33-year-old world’s No 1 played fellow Serb Troicki in the first event in Belgrade.
In a post on Twitter, Novak Djokovic said it had been “too soon” to stage the tournament.
“I am so deeply sorry our tournament has caused harm,” he said.
He said the tournament had been organized with “a pure heart”, “good intentions” and a belief that they had “met all health protocols”.
“We were wrong and it was too soon,” he said.
The remaining Adria Tour events in Banja Luka and Sarajevo have now been canceled Novak Djokovic’s brother Djordje, who is a director of the tournament, has confirmed.
“Unfortunately, due to all the events that happened in the last few days, we have decided that the most important thing right now is to stabilize the epidemiological situation, as well as for everyone to recover,” he said.
A statement on Novak Djokovic’s website said: “Immediately upon his arrival in Belgrade [after the second event] Novak was tested along with all members of the family and the team with whom he was in Belgrade and Zadar. He is not showing any symptoms.”
There have been no ATP Tour events since February because of the global pandemic and the Adria Tour, which is not an ATP Tour event, was one of the first competitions to be staged since then.
The first leg in Serbia attracted 4,000 fans, and players were later pictured dancing close together in a Belgrade nightclub.
Bulgaria’s Grigor Dimitrov played Croatia’s Borna Coric on June 20 in the second leg in Zadar, Croatia.
With Croatia easing lockdown measures, players were not obliged to observe social distancing rules and were seen embracing at the net at the end of their matches.
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Pictures on the tournament’s social media site from June 19 showed Grigor Dimitrov playing basketball with Novak Djokovic, Alexander Zverev and Marin Cilic, while he also put his arm around Borna Coric before their match.
Alexander Zverev, Marin Cilic and Andrey Rublev, who also played in the Adria Tour, have tested negative, but suggested they will all now self-isolate for up to 14 days.
The ATP Tour season is set to restart on August 14 and the US Open will be held without fans from August 31 to September 13, despite some players voicing concerns about travelling to New York.