The match was even initially, where Källberg took home the first set with 12–10, before Truls Möregårdh could come back and win the second set with 13–11.
Möregårdh then had problems in the third set and was noticeably frustrated. It was only one point in the set for the 22-year-old, who finished 1–11 after hitting his serve away to the decisive point in Källberg's favor.
That's the way I am. I show a lot of emotions and it may not be so Swedish, says Möregårdh.
Despite the tough third set, Möregårdh came back in the fourth, won with 12–10, and forced a fifth and decisive set. There, he was the strongest and could secure the victory with 11–8 in the set.
It's sport to show emotions. Maybe it was a bit too negative today, but if I didn't do it, I probably wouldn't have won the match, says Möregårdh.
Awaiting him now is the winner between world number one Chuqin Wang, China, and Patrick Franziska, Germany, in the quarterfinals.
This was the third time in a short period that the two Swedes faced each other. In the European Championship quarterfinals, Möregårdh won, but Källberg got his revenge in the semifinals of the WTT Champions tournament.
We both think it's a shame, said Möregårdh about the draw before the Swedish match.