Mikel Oyarzabal said a minor knee injury will not put his World Cup at risk after kickstarting Spain's challenge by scoring twice in a 4-0 win over Saudi Arabia.
Oyarzabal also set up La Roja's opening goal for Barcelona superstar Lamine Yamal as the European champions made amends for a disappointing 0-0 draw against Cape Verde in their first match in North America.
Spain boss Luis de la Fuente revealed after the match that the Real Sociedad forward had been struggling with a knee problem, but insisted he was fit to start.
"I'm dealing with a niggle, but I think that's true for everyone here. Everyone has something that needs taking care of," Oyarzabal told a press conference on Tuesday.
"I'm fine. The other day, admittedly, there was a moment of uncertainty, not knowing exactly what the situation was or if I'd have the chance to play. Fortunately, it turned out well, and I'm happy."
Since scoring the winner against England in the Euro 2024 final, Oyarzabal has become Spain's undoubted first choice up front.
The 29-year-old has 14 goals in his last 13 international appearances.
But having never moved from Sociedad, there has been a perception that Oyarzabal is not as highly rated outside of Spain as he is by De la Fuente and his teammates.
"I'm actually tired of answering this question; I don't dwell on it," he added.
"What matters to me is what my teammates, my coach, the staff, and the people whose opinions actually count have to say.
"We know how football works these days, and it's normal for people to talk, but I don't let it bother me."
Spain next face Uruguay in Guadalajara on Friday.
A draw is enough to secure top spot in Group H as long as Cape Verde do not beat Saudi Arabia by four or more goals.
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