Defender Sam Fink headed in a Lewis Hilton corner kick in stoppage time on Wednesday night, lifting St. Louis FC to a 1-0 victory over Major League Soccer’s FC Cincinnati before an enthusiastic crowd of 4,033 at Soccer Park in the Round of 16 of the U.S. Open Cup tournament.

STLFC, of the USL Championship league, will take on the MLS’ Atlanta United in a quarterfinal match on July 10 on the campus of Kennesaw State University in Georgia. Atlanta United defeated the Columbus Crew 3-2 on Tuesday in a Round of 16 match in Ohio.

STLFC advanced to last night's game with a 2-1 win over the MLS' Chicago Fire on June 11 at Lindenwood University.

“I think the guys deserved that,” Fink said after scoring his fourth goal of the season. “We went toe-to-toe with them, didn’t back down. Felt like we had some great opportunities — (goalkeeper Tomas Gomez) bailed us out a couple of times. But I really felt like we deserved to move on.”

With overtime looming, STLFC’s Russell Cicerone — a former FC Cincinnati player — tested FC Cincinnati keeper Pryzemyslaw Tyton with a low shot that set up the winning corner kick. And Hilton’s far-post drive found Fink, an Edwardsville High product, for thewinner.