The 24-year-old former Red Bulls academy player will be searching for his fourth club in as many seasons.
Kassel, 24, came into Major League Soccer with the New York Red Bulls as a Homegrown Player in 2011, but was waived after one season and two appearances. After a standout season with the Pittsburgh Riverhounds of USL PRO, the New Jersey native was back in MLS with the Union. He made five appearances for the Zolos in 2013, and became the first Homegrown Player to play against the club that initially signed him.
Ribeiro, the 23-year-old 15th overall pick in the 2014 SuperDraft, spent his four-year collegiate career at Coastal Carolina. The 6-foot-4-inch native Brazilian also played with the Union's PDL affiliate, Reading United. Marquez, 21 and the 44th overall pick, and played four years at the University of Redlands.
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