Djokovic perhaps... on the girls side Serena, Maria etc... but to be honest you can't categorize Petra here yet since it's only 2 tournaments.
And before she won Wimbledon she was the queen at majors always finding her form when it counted the most, no ? So from that perspective I'm not that much worried for US Open just for the regular events where perhaps she should gain more regularity.
Yeah. That's true. Let's not forget, that she hasn't played the US Open, and may be able to play her into form with lower seeds. We'll see. But this 2nd set, seems easier than the first set, so far. WTF?