"It was kind of a little foolish to think that I would shoot really well, just hitting golf balls last week," the former U.S. Women's Open champion said.
"It's a tough golf course, but I'm really, really happy that I played. Just feeling a lot of joy, just being out there, and, you know, competing again.
"It's going to take time, and I've just got to be patient, and, thankfully, I have all afternoon to get warm again and take care of my wrist."
But Wie, a five-time winner on the LPGA Tour who has endured a start-stop return to competitive golf after surgery last October, broke down when she started to discuss her career.
"It's hard," a tearful Wie told reporters. "It's just one of those situations where I'm not, you know, I'm not entirely sure how much more I have left in me, so even on the bad days, I'm just, like, trying to take time to enjoy it. But it's tough."
Wie was so choked up while discussing her career that she was unable to continue and walked away from reporters who had gathered outside the Hazeltine clubhouse.
Despite an opening round that included a quadruple-bogey, two double-bogeys, six bogeys and two birdies, former world number two Wie did not indicate she plans to withdraw from the year's third major.
(Reporting by Frank Pingue in Toronto; Editing by Greg Stutchbury)
