"I am progressing. In the last few days I have started running on the pitch, which is good news because I've been spending a lot of time in the gym," the Basque told liverpoolfc.tv.
"It's always a relief to get back exercising on the pitch and at the moment it's looking good, but I don't know if I will be fit enough to be ready for the derby.
"The fact it's the derby doesn't make me more determined - I'm always determined to recover as quickly as possible. I want to be back as soon as possible but I have to respect my foot. I have to see how it feels."
