Buuxi weedha soo socota: Cahill ayaa dhaliyay kulankiisii ugu horreeyay ee xilli ciyaareedkan guushii 4-2 ee ay ka gaareen Reading 22kii Ogosto 2012. 31kii Agoosto, wuxuu dhaliyay gool
2012 UEFA Super Cup oo ay la ciyaareen Atlético Madrid, oo ay Chelsea ku lumisay 4-1. 5kii Diseembar 2012, Cahill wuxuu dhaliyay goolkiisii ugu horreeyay ee UEFA Champions League, isagoo ka soo horjeestay Nordsjælland kulankii 6<unk>1 ee gurigiisa. 16kii Diseembar 2012, Cahill ayaa laga saaray kulankii ay la ciyaareen Corinthians kulankii ay Chelsea 1-0 ugu badiyeen finalka koobka adduunka ee kooxaha FIFA 2012 kadib markii ay isku dhaceen Emerson. Bishii Janaayo 2013, Cahill ma uusan ciyaarin kulanka horyaalka ee Stoke City sababtoo ah dhalashada wiilkiisa, Leo. 15-kii Maajo, wuxuu bilaabay 2013 UEFA Europa League Final ka dhanka ah Benfica wuxuuna sameeyay gool muhiim ah daqiiqadihii ugu dambeeyay si loo hubiyo in Chelsea ay ku guuleysatay 2<unk>1.