Former players suing the NHL over concussion-related problems have accused the league of blocking access to Bettman for testimony in the case. The court told the plaintiffs they could depose Bettman as early as July.
Attorneys for the plaintiffs said the court found that Bettman "possesses unique knowledge concerning concussion injuries."
The league had sought to have the federal class-action complaint dismissed, but that motion was denied in March.
The plaintiffs are seeking unspecified damages and medical monitoring for neurological disorders. They've argued the league had the knowledge and resources to better prevent head trauma, failed to properly warn players of such risks, and promoted violent play that led to their injuries.