India, July 2 -- When Serena Williams accepted an offer to play singles at Wimbledon, Maya Joint got to thinking.

The 20-year-old Joint had said there was "always a part of me that wanted to experience playing against her."

After getting what she wished for - a first-round meeting with the tennis icon - Joint delivered on the biggest stage.

The Michigan-born Australian showed few nerves in winning the biggest match of her life - defeating Williams 6-3, 6-7 (6), 6-3 on Tuesday to spoil the 44-year-old Williams' singles comeback at the All England Club.

"I didn't get much sleep last night. I was up until like 2 a.m. just thinking about it," Joint said in her on-court interview.

The 87th-ranked Joint certainly looked calm on the outside...