It's been tough going for Novak Djokovic and Serena Williams lately. Would they be better off hanging up their rackets until the Australia Open rolls around?
- Halep overpowers Keys to reach Wuhan semis
- Serena: 'Won't be silent' about racial tensions
- Djokovic skips China Open with elbow injury
- Serena to kick off 2017 season in New Zealand