Maria Sharapova can feel her confidence grow and her overall skills returning more every day, serving notice to US Open foes that her shoulder surgery woes are gone and she is a true title threat.

The 22-year-old Russian beauty took just 73 minutes on Thursday to rout US teen Christina McHale 6-2, 6-1, and advance to the third round of a draw suddenly wide open thanks to several seeded upset victims.