The Spanish professional was back in the national team after a two-year absence due to injuries.
It was he who initiated the Swedish comeback in the end of the match when it seemed to be over.
However, it was Christopher Czerapowicz who scored the decisive points.
With 7.8 seconds left, he had to step in and replace Denzel Andersson as a free throw shooter.
"Very many nerves"
Andersson hit his head on the floor after being fouled.
It was very many nerves. There are very many thoughts on the first free throw, when I see it roll in, the nerves let go, says the Polish professional who scored both free throws and secured 73–72.
8,906 spectators at Hovet in Stockholm erupted – including the Olympic gold pair and beach volleyball heroes David Åhman and Jonatan Hellvig, and parts of the royal family.
With barely four minutes left to play, Sweden was trailing by eleven points against the World Champion, where David Krämer, one of two from the World Championship gold team in the match, was single-handedly about to sink Sweden with 43 points scored.
Then "Ludde" Håkanson stepped forward.
"The biggest I've been part of"
He shot three three-pointers on the way to the turnaround.
It may have been the biggest I've been part of. We don't play our best match, we can play better. But beating the World Champions at home is something you'll be telling about for the rest of your life, he says triumphantly about the victory.
It may be the biggest win in Swedish men's basketball history.
It's always incredible to play here. It's sold out, Swedish basketball is doing well. I get goosebumps just thinking about it, says Håkanson.
It also gives Sweden a dream opportunity to reach its first European Championship final on the men's side since 2013. Sweden has two wins and one loss so far.
Already on Monday, Germany awaits on away ground – then reinforced by three Euro League players who were missing in Stockholm.
The European Championship qualification is concluded in February.
