The enigmatic Swede says he fully expected to be replaced at the Gerland, given the French champions are set to kick off their Champions League campaign next week
The Swede, who set up Blaise Matuidi's opener in a 2-0 win, was replaced by Edinson Cavani with just under 10 minutes to go in the game at the Stade Gerland.
It was a notable first for Ibrahimovic but the enigmatic forward had no qualms with Laurent Blanc's decision, with the commencement of PSG's Champions League campaign looming large on the horizon.
"It is normal to see rotation given the busy schedule ahead of us in the coming weeks," the 31-year-old is quoted as saying by L'Equipe.
"You can get hurt or be less efficient. I expected it. We must conserve ourselves."
There had even been a suggestion that Ibrahimovic might have been left on the bench, given his exertions for Sweden during the international break, but the striker said there had been no chance of that happening.
"Never," he declared. "I did not have any doubt [about starting]. I'm here to play, I'm paid to do so."
As for the victory in Bordeaux, Ibrahimovic was enthused by both the fact that Lucas Moura scored his first goal for PSG and the team's performance as a whole.
"I'm very happy for [Lucas]," he enthused. "He has enormous qualities and the goal will give him confidence for the future. He will continue to be decisive.
"We played a good game, really. I even think it's our best performance of the season. It was of the same level as our return match against Barcelona in the Champions League last season."
PSG will return to European action on Tuesday night when they face Olympiakos in Greece.