The Spaniard picked up a knee problem prior to his side's Premier League opener against West Brom and has since struggled through two months' action. But after a recent injection, the full-back is hopeful of a swift return to full fitness and is determined to prove his worth to new boss Brendan Rodgers.
"I don't know quite what the problem is but I have been playing with a lot of pain," he told Liverpool's official website.
"I had an injection in my knee so hopefully that will settle it down and allow me to find my form again because it is difficult playing with pain."
"It is something behind my knee and I have had to be very careful with it. I've been trying to play with it but it is not 100 per cent."
"I felt it in training before the opening day of the season at West Brom and since then it has been very bad. Hopefully the injection will sort it out."
"Obviously with a new manager at the club you want to be at your best, but I want to play to help us climb up the table. I want to get back as soon as possible."