Sydney Thomas -- the ring girl who went viral during the Jake Paul vs. Mike Tyson fight -- is opening up on her newfound fame ... telling TMZ Sports she's received a ton of new business opportunities in the days following her breakout appearance.
Thomas was quickly dubbed the "real" star of the night after El Gallo defeated Iron Mike ... with social media showing serious love for her throughout the big event.
We caught up with Thomas one week after the night that changed her life .