Kammala jumla mai zuwa: A karkashin sabon babban kocin Siniša Mihajlović, Álvarez ya zama dan wasa mai mahimmanci a cikin tawagar bayan tashi daga hannun dama Gennaro Sardo, kuma daga karshe ya zarce Alessandro Potenza don fara matsayi na dama. Álvarez ya buga wasanni sama da 30 don Catania, a lokacin dawowarsa, kuma ya kasance mai farawa ba tare da jayayya ba a yawancin kakar. An san shi da manyan wasan kwaikwayon sa, kamar yadda ya kiyaye tauraron dan wasan Argentina Diego Milito a cikin nasara 3-1 ga Calcio Catania a kan Inter Milan a Stadio Angelo Massimino, da kuma Ronaldinho a wasan 2-2 da AC Milan a San Siro. Catania kuma ya kayar da Juventus, a cikin kakar wasa, cewa kungiyar ta kai matsayin maki na rikodin a Serie A, inda ta kammala a matsayi na 13, kuma ta kai wasan kusa da na karshe na 2009-10 Coppa Italia. Catania ya kai matsayin maki na uku a jere a lokacin
2010<unk>11 Serie A kakar wasa, kuma sake a karo na hudu a jere kakar a lokacin 2011<unk>12 Serie A kakar. Duk da haka, a lokacin wannan kamfen, an yi amfani da Álvarez a wasanni 8 na gasar zakarun Turai ta kocin Vincenzo Montella, kuma a ranar 31 ga Janairu, 2012, an ba da Álvarez zuwa kulob din La Liga Real Zaragoza har zuwa karshen kakar wasa. Ya fara bugawa kulob din a ranar 12 ga Fabrairun 2012, kuma ya koma Catania bayan karewar yarjejeniyar aro.