Kenney Bertz scored the winner for the Rhinos off a corner kick from Johnny Menyongar in the 70th minute. Alen Marcina and Victor Herrera scored in Puerto Rico's win in Friday's season opener.
All the action is available on USL Live.
Puerto Rico 2 (Marcina 14, Herrera 47) Rochester 1 (Diallo 50).
Miami 0 Rochester 1 (Bertz 70).