For a time, each MLS team was nominally required to field a reserve team in a USL league, either by operating a standalone team or affiliating with an independently owned team, barcelona jerseys 2024 though this was never strictly enforced. In addition, one U.S.-based team left the league but was replaced by a new team in the same area; and three completely new teams entered the league for 2014. One of the new teams was an MLS reserve side. One of the U.S.-based teams folded following the 2011 season; two new U.S.-based teams joined the league in 2013. In that same year, napoli 24/25 kit MLS and USL Pro entered into a formal agreement that eventually merged the MLS Reserve League into the USL Pro structure.