"He aggravated an injury there," Blackhawks coach Joel Quenneville told reporters in Chicago after his team's morning skate in preparation for a preseason game Thursday against the Pittsburgh Penguins. "We're going to keep him off. I wouldn't expect him in the next four games here in the next five nights. We'll see how he progresses after that."
However, Quenneville said he expects Hossa to be ready for the regular-season opener, Oct. 1 against the Washington Capitals (8 p.m. ET, NBCSN).
"Whether we're talking seriousness of it or not, we feel he'll be back and he'll be fine," Quenneville said.