On March 20, 2020, Pablo Rossi signed a professional contract with USL club Seattle Sounders FC2, and made his debut the same day in a 4-2 victory over Sacramento Republic FC.
On March 20, 2015, following a successful trial period, Rossi signed a professional contract with USL club Seattle Sounders FC 2. He made his professional debut that same day in a 42 victory over Sacramento Republic FC, scoring once from a free-kick and assisting another. 
