Spain boss Vicente del Bosque has claimed that La Roja "feel good" ahead of the World Cup.
The European and world champions concluded their preparations for the tournament with a 2-0 win over El Salvador on Saturday evening.
Their first Group B match, meanwhile, is against Netherlands on Friday.
"Juanfran played the entire 90 minutes and held up, Diego Costa played for 70 and he could've gone more but we decided to take him out," he told reporters following the match.
"With these 23 players, we're going to Brazil. We lacked continuity and accuracy in the final third, but we dictated the match.
"We feel good and we're optimistic about the start of the competition. We didn't have many chances on goal but they were good and defended very well."
David Villa scored twice in last night's clash at the FedEx field.