Zlatan injured his knee in Saturday's Supercup-final and today PSG officially stated on their website that he will miss Friday's league premier against Lille.
"Injured during the first half of the 2-0 Trophée des Champions win over Lyon last Saturday in Montreal, Paris Saint-Germain forward Zlatan Ibrahimovic has been ruled out of Friday's Ligue 1 opener against Lille."
"Further examinations this week confirmed a strain of the internal medial ligament of the right knee."
Source: psg.fr.