"If I'm not 100 percent, I don't think it's necessary," said world No. 5.
The 2009 US Open champion one of three wild cards into main draw.
Jatuporn Nalamphun has been suspended for 18 months and fined $5,000.
Wawrinka saved two match points and won the match, but Stakhovsky earned big style points on this play.
Dustin Brown is the wow warrior, the wondrous wow.
Brazilian wild card Thiago Monteiro made his first ATP one to remember stunning world No. 9 Jo-Wilfried Tsonga.
The 58-year-old says sushi may have played a role in his collapse in Australia.
