Serbian Viktor Troicki has become the fifth Adria Tour participant to test positive for COVID-19.

Troicki, 34, underwent a test on Sunday after his pregnant wife Aleksandra tested positive late last week.

He didn’t play in the Adria Tour in Croatia at the weekend, where both Grigor Dimitrov and Borna Coric were found to have tested positive, but did play in the Belgrade leg of the tour on June 12.

“It is true that my wife and I are positive. She was tested on Friday, and my daughter and I on Sunday after we found out she was positive. My daughter is negative, and my wife and I are positive,” Troicki said.

The Adria Tour final between Andrey Rublev and Novak Djokovic was cancelled after Grigor Dimitrov tested positive after his match against Borna Coric. Coric then tested positive a day later.

Alexander Zverev, Marin Cilic and Rublev have tested negative for the virus.

Dimitrov’s coach Chris Gro and Djokovic’s fitness coach Marko Paniki have also tested positive.