She's Carla Suarez Navarro from Barcelona. 20 years old. 5 ft. 4 in. (1.63 meters). 137 lbs. (62.3 kilos). Career prize money - $353,875 USD. The farthest she reached in the slams was 2nd round in the Wimbledon.
Venus is 6 ft. 1 in. (1.85 meters) and 159 lbs. (72.3 kilos). Has 7 grand slam titles in her name. Career prize money - $21,940,096 USD. And so much experience and confidence.
But the 7 inches height difference and broad experience gap didn't matter. She created a big upset on the slam.
She has the winning back hand move, just like Justin Henin. And braces to boot! :)