The expectations, however, remain the same.
Willy Hernangomez scored 27 points, Juancho Hernangomez added 15 and Spain — with just three players who got any significant playing time at the Tokyo Games last summer — powered into the semifinals by erasing a 15-point deficit and topping Finland, 100-90, in Tuesday's quarterfinal.
Down 50-35 late in the final half, Spain outscored Finland 65-40 over the game's final 21 minutes.
"We showed, one more time, cohesiveness, toughness, generosity, we shared the ball well," Spain coach Sergio Scariolo said. "At the end of the day, this is what you can ask to a team which is so inexperienced and so new in this kind of engagement."
Spain reached the EuroBasket semifinals for the 11th consecutive time and will play Germany on Friday for a spot in the final.
Willy Hernangomez goes 10 for 13 in 27 minutes of action.
Dario Brizuela scored 14 points, Rudy Fernandez added 11 and Lorenzo Brown had 10 for Spain.
"It was a hard battle," said Willy Hernangomez, Juancho's older brother. "Tough battle for us. ... Our first half was really bad. We started the game not with the right mentality. And then at halftime, (we said) we've got to be us, we've got to be us."
Spain opened the third quarter on a 17-5 run, more than setting the tone for its comeback.
Lauri Markkanen scored 28 points and grabbed 11 rebounds for Finland, while Mikael Jantunen scored 13, Alexander Madsen had 13 and Sasu Salin added 11.
Finland was seeking its first trip to the EuroBasket semifinals.
"Well, you see why Spain is always so tough," Finland's Shawn Huff said. "They never give up. We gave it a good shot."
The other two quarterfinal games are on tap France plays Italy, and defending champion Slovenia takes on Poland.