Steiner, 26, filed the lawsuit on April 14 in Massachusetts, seeking damages for injuries she claims resulted from wearing Puma shoes designed with Mercedes F1.
The complaint alleges the shoes caused severe, permanent foot injuries, requiring multiple surgeries and ending Steiner's Olympic aspirations and professional running career.
Puma and Mercedes have not yet responded to the lawsuit, with a court deadline set for August 24. Steiner, a record-holding sprinter, now resides in Columbia, South Carolina.
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