"It does not get old, it is fun," said Persson, who will be competing at his seventh Olympic tournament. "I want to get a medal in the Olympics – I've tried six times! This is my last chance."
Persson has missed some training due to a slight leg injury, but thinks he will be fit in time for the tournament.
"I have missed some important training. I had to break for two weeks, but now I feel much better. It will be OK for London."
The 46-year-old is among the oldest Swedish athletes to head to London.
"I do not think so much about age," Persson said. "I am part of the team. Of course I try to help with my experience. I try to do that. Sometimes I hear I am the grandfather of the team – but that is just for fun."