1. Novak Djokovic Isn’t Done With His Season | US Open 2019  ATP Tour
2. Novak Djokovic vs Stan Wawrinka | US Open 2019 R4 Highlights  US Open Tennis Championships
3. Novak Djokovic retires early due to shoulder injury, falls to Stan Wawrinka at US Open  Yahoo Sports
4. Stan Wawrinka shocks Novak Djokovic to advance to US Open quarterfinals after world No. 1 retires  CNN International
5. Defending champ Djokovic out of US Open with bad shoulder  SF Gate
6. View full coverage on Google News

Source: Google Finance – Market News