“We'll save it until the Wales match” on June 5th, Hamrén told Swedish news agency TT ahead of the match against Slovenia in Malmö.
“It's the calf he's had problems with towards the end at PSG,” he said.
All eyes have been on the 34-year-old striker lately pending an announcement on the next step in his career.
Having left Paris Saint-Germain at the end of this season, he has refused to comment on speculation that he is set to join Manchester United, where José Mourinho was on Friday named the new manager.
However, Ibrahimovic's refusal did not stop his agent Mino Raiola from appearing to deny on Sunday that his client would be heading to Old Trafford.
“Everyone assumes that he must go to Manchester United, but it is not true,” he told the Expressen tabloid.
What the rest of you do with a football, Zlatan does with a banana. Photo: Erik Nylander/TT
The footballer himself said last week that he knew where he would be playing football next season, but kept mum on the details.
“Yes, I have made my choice,” he told a press conference at a training camp near Stockholm for the Swedish national team ahead of Euro 2016.
He said he had decided “long ago” but dodged all questions about whether that team was Manchester United.
However, when asked a direct question about whether he has received an offer from United, Ibrahimovic's hesitancy in answering spoke volumes.
He drummed his fingers on the table, smiled and eventually replied: “Let's see what happens.”