Sweden had just secured a 1-0 aggregate victory over Italy with a squad short on big names, a team that snatched second place in European qualifying Group A from the Dutch and beaten France at home before knocking out Italy, all without Zlatan.
"This is incredible. The player has just stopped to play one-and-a-half years ago and we are still here talking about him," Sweden boss Andersson told reporters when asked if Ibrahimovic was set to return.
The 36-year-old walked departed the national team after a disappointing group stage exit at Euro 2016, ending an international career that saw him score 62 goals, many of them spectacular, in 116 matches for his country.
Shortly after the game Zlatan posted a picture on social media with the caption "We are Zweden". By Tuesday, it had over a million likes on Instagram, but Andersson didn't seem entirely positive about a possible return.
"Zlatan is, as I expressed it, our greatest player of all time, a fantastic athlete in every way, but he has chosen not to take part," he told a news conference in Milan on Tuesday.
"These guys who did take part and have performed fantastically. It's sad to sit and talk about someone who hasn't been here. I have a gang that has done fantastic, we can talk about them instead."
The Manchester United striker, who is currently recovering from a serious knee injury, has always been something of a divisive figure in his native country, adored for his skills but often perceived as arrogant and selfish.
After his departure and that of former manager Erik Hamren, the Swedes went back to their traditional style of being a tightly-knit collective where no individual is more important than the team - a return for Zlatan now could upset that delicate balance.
Andersson's players were not in the mood to discuss a possible return either.
"First and foremost he must open up the possibility himself. Otherwise I don't think one should have this discussion," defender Ludwig Augustinsson said after the Italy game.
Ibrahimovic's agent Mino Raiola was a lot more positive towards a comeback for his client.
"If it's up to me, I'll deliver him myself," he told Sweden's SportExpressen.
(Reporting by Philip O'Connor; Editing by Christian Radnedge)
