Complex sentence: On 29 August 2009, Casas moved teams again, but stayed in the country, joining Larissa F.C. on a one-year contract; however, in January 2010, he returned to Argentina, joining Club de Gimnasia y Esgrima La Plata on loan.
Split into simpler sentences: On 29 August 2009 Casas moved teams again but stayed in the country, joining Larissa F.C. on a one-year contract. However, in January 2010, he returned to Argentina, signing with Club de Gimnasia y Esgrima La Plata on loan.