Buuxi weedha soo socota: Macalinka cusub ee Siniša Mihajlović, Álvarez wuxuu noqday ciyaaryahan qiimo badan ku leh kooxda ka dib markii uu ka tagay daafaca midig Gennaro Sardo, wuxuuna ugu dambeyntii dhaafay Alessandro Potenza booska daafaca midig ee bilowga ah. Álvarez wuxuu sameeyay in ka badan 30 kulan oo uu u saftay kooxdiisa Catania, xilli ciyaareedkiisii soo laabashada, wuxuuna ahaa ciyaaryahan aan muran ka taagneyn inta badan xilli ciyaareedkii. Wuxuu caan ku ahaa bandhigiisii ugu sarreeyay ee kooxda weyn, maadaama uu si gaar ah u ilaaliyay xiddiga reer Argentine Diego Milito guushii 3-1 ee Calcio Catania ay ka gaartay Inter Milan garoonka Stadio Angelo Massimino, iyo sidoo kale Ronaldinho oo barbaro 2-2 ah la galay AC Milan garoonka San Siro. Catania ayaa sidoo kale si cajiib ah u garaacday Juventus, xilli ciyaareed, in kooxdu ay gaadhay rikoor guud oo dhibco ah Serie A, oo ku dhammaatay kaalinta 13-aad, sidoo kale waxay gaartay semi-finalka 2009-10 Coppa Italia. Catania waxay gaartay dhibco rikoor ah sannadkii saddexaad oo isku xigta intii lagu jiray
2010-11 Serie A xilli ciyaareed, iyo mar kale xilli ciyaareedkii afaraad oo isku xigta intii lagu jiray 2011-12 Serie A xilli ciyaareedka. Intii lagu jiray ololahaas si kastaba ha noqotee, Álvarez waxaa loo adeegsaday kaliya 8 kulan oo horyaal ah tababare Vincenzo Montella, iyo 31 Janaayo 2012, Álvarez waxaa amaah loogu siiyay kooxda La Liga ee Real Zaragoza inta ka hartay xilli ciyaareedkii. Wuxuu kooxdiisa u saftay 12kii Febraayo 2012, wuxuuna ku soo laabtay Catania markii uu dhamaaday heshiiskii amaahda.