Champion sprinter Abby Steiner sued Puma and the Mercedes F1 team, claiming defective shoes triggered career-ending injuries, court documents show.

Champion sprinter Abby Steiner sued Puma and the Mercedes F1 team, claiming defective shoes triggered career-ending injuries, court documents show.

Abby Steiner is suing Puma and the Mercedes Formula 1 team over a shoe design that she says permanently injured her feet and ended her career.