Major League Baseball will attempt to suspend around 20 players linked to the Miami-area clinic implicated in a performance enhancing drugs scandal - including the New York Yankee's Alex Rodriguez.
An ESPN 'Outside the Lines' investigation understands Tony Bosch, the founder of the now-closed Biogenesis of America, has agreed to talk openly with the MLB about drug taking at the facility.
The agreement to cooperate with the baseball authorities could give the MLB the evidence they believe they need to suspend the players.
The bans under consideration are thought to be up to 100 games - the penalty for a second doping offence. If the suspensions are upheld, the performance-enhancing drugs scandal would be the largest in American sports history.
According to ESPN, the MLB argument is that the implicated players' connection to Bosch is their initial offence, while previous denials relating to PEDs constitute another offence.
Bosch could meet MLB officials as early as Friday to share information, with an announcement regarding bans expected within 14 days.
About 20 players have been under scrutiny by the MLB, including Rodgriez, the Milwaukee Brewers' Ryan Braun and the San Diego Padres' Everth Cabrera.
But the MLB couldn't act confidently without testimony from Bosch - something they do hope to be able to do now.
The New York Yankees are refusing to comment on the reports at the moment, and the Yankees manager Joe Girardi insists the focus remains on baseball.
"When I talk to Alex, it is baseball-related," Girardi told ESPN. "I'm going to talk baseball. I'm a baseball manager and that is what I'm going to talk about.
"MLB is handling it and I'm going to let them handle it. I check to see how he is doing. As far as talking about that? No."