Pietersen, who notched his 100th Test during this Ashes series in Brisbane, also brushed off questions about the tourists' troubled Australia campaign signalling a changing of the guard for the side following Swann's retirement and return home of Jonathan Trott with a stress-related illness.
"I'm 33 years of age, I'm batting as well as I've ever batted," the English linchpin told reporters in Melbourne when asked whether he could be the next to call it a day.
He would not be drawn on the furore over Swann's shock decision to walk away from the team and suggestions that his remarks about some players having "no idea how far up their own backsides they are" were directed at Pietersen.
"I'm not giving any energy to what happened yesterday, the only energy that I've got on this tour left in me is for Melbourne on the 26th, training today, training tomorrow and Sydney," he said.
"My interest levels in yesterday are less than zero."
"I think we've proved that we're world-class players. You don't play three Test matches and become horrendous cricketers, you don't turn up on an Australian tour and lose 5-0 and never have a good day in your career again," the combative batsman said.