- Novak Djokovic’s retirement date may be sooner than expected Tennis365
- Novak Djokovic describes new tennis reality after Madrid Open defeat to Matteo Arnaldi – The Athletic The New York Times
- Novak Djokovic beaten by Matteo Arnaldi at Madrid Open BBC
- Djokovic faces ‘new reality’ following Madrid exit ATP Tour
- Novak Djokovic vs. Matteo Arnaldi: Where to Watch, Madrid Preview, Betting Odds Tennis.com