 Canales scored his first goal for his new side on 1 October, the game's only in a home fixture against Granada CF.Late into the month, he had to be stretchered off during a league home match against Athletic Bilbao and, the following day, he was diagnosed with a torn knee ligament, being sidelined for six months.On 26 April 2012, in only his fifth appearance since returning, against Atlético Madrid in the Europa League semifinals' second leg, Canales relapsed from his injury early into the second half of an eventual 0–1 home loss (2–5 aggregate defeat), going on to miss a further six months of action.