However, ahead of the upcoming friendlies against Equatorial Guinea and South Africa, the 31-year-old has claimed that he is ready for the "battle".
"There's competition for a place in every position," he told reporters at a press conference.
"During the past few years we've seen several good players been omitted because there just isn't room for everyone. The competition to secure a place is fierce and continues every day. We have to battle with each other to gain a place in the list and try to achieve something important again.
"What we did in South Africa wasn't easy. We've got a lot of work to do before the tournament starts. We have the potential to triumph again".
The experienced forward has scored 56 times in 92 caps for Spain.