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The Packers got out to a 7-0 lead on Sunday against the Cowboys thanks to Eddie Lacy.

Lacy ran the ball on seven of the first eight plays of the game, gaining 45 yards and moving the Packers into position for a short Aaron Rodgers touchdown pass to Andrew Quarless. After that, though, James Starks handled the running back duties for most of the first half because Lacy was having a hard time breathing. An ill-timed asthma attack did what the Cowboys defense couldn’t.

“You know your body is good enough to go out and play,” Lacy said, via the Milwaukee Journal Sentinel. “But … you just can’t breathe. And it’s a breathing thing. It’s not something you want to go out and risk … risk something bad happening. There’s nothing I can do about it. It’s a medical condition. I take my inhaler, I do everything I’m supposed to do. When it happens, it happens.”

Lacy returned to full action in the second half after his medication helped settle things down and wound up with 101 rushing yards to help the Packers come back for a 26-21 win. He said after the game that he didn’t expect the issue to recur in Seattle, where he’ll need to come up with more than the 34 yards he had in a Week One loss for the Packers’ season to continue.