The hiatus left the city without a professional soccer team for the first time since 19985, and left the city's soccer-specific stadium, Marina Auto Stadium, without a main tenant.

In 2020, a ownership group headed by David Weaver, the CEO and founder of Rochester-based Aphex BioCleanse Systems Inc. and a former Kodak optical engineer, submitted an application for a NISA team in Rochester.

[2][3] Mark Washo, a former Chief Business Officer with the Rhinos was appointed as Managing Director and Chief Commercial Officer and the group later announced a partnership with St. John Fisher College’s Sport Management Department.

[4] On December 17, 2020, NISA approved the group's expansion application, and the following day, it was revealed that the club's name would be the Flower City Union, a nod to Rochester's nickname as the Flower City.

Source: Flower City Union Numbers after plus-sign(+) denote appearances as a substitute.