[Li-Na takes another sip of water, then gives the other girl a slightly puzzled look. That's the third time in a row she's made a suggestion for her to take a break. Li-Na knows she doesn't look tired, not with how easy she can make things look with her boots.]

I appreciate your concern, but I am fine for now. I know my body. I know when I need to take a longer break.

[Whether she actually does it when she knows she should is another matter entirely.]