Sucart and the others are accused of acting as recruiters, setting up meetings between the athletes and Bosch, who introduced himself as "Dr. T," authorities said. Professional athletes paid up to $12,000 a month for the drugs provided by Biogenesis, while high schoolers paid up to $600 a month. All the clients were promised that the substances would not be found through drug testing, prosecutors said.
"He is not a doctor," Mark R. Trouville, chief of the Miami Drug Enforcement Administration office, said of Bosch. "He is a drug dealer."
U.S. Attorney Wifredo A. Ferrer said Bosch didn't have a medical license, making what happened all the more dangerous.
"As with many drug cases, these defendants were motivated by one thing by money," Ferrer said.
Major League Baseball was not part of the criminal investigation and declined comment. No athletes were charged nor named in court documents, and it is unclear how many may have been involved. However, authorities said Bosch admitted to providing performance-enhancing drugs to 18 high schoolers.
For now, Bosch has pleaded not guilty and his bond was set at $100,000. He faces up to 10 years in prison.
"In terms of an agreement to cooperate and plead guilty, Bosch has agreed to do that," Ferrer said.
Michael McCann, director of the sports and entertainment law center at the University of New Hampshire School of Law, said it's unlikely that the players involved in this scandal will face criminal charges, unless there's any evidence that a player went beyond using drugs and into distributing them.
"They could lose an endorsement contract because of a morals clause in their contract, but if that were to happen I think it would have already happened," McCann said. "In terms of punishment from baseball, baseball has punished them."
The prosecution may have taken so long because investigators might have wanted to confirm the information they were getting from Bosch, even if he was cooperating, McCann said.
"He's not somebody with a great track record; there are reasons to doubt him in terms of his credibility," he said.
Joe Tacopina, a lawyer for Rodriguez, said the arrests Tuesday represent a degree of closure for Rodriguez and will enable him to focus on an eventual return to baseball.
"It sort of reinforces the notion that Alex committed no crime, number one," Tacopina said. "And number two, quite frankly, this really signified the beginning of the end of the whole Biogenesis saga and allows Alex to focus on the future going forward."
Rodriguez is currently serving a season-long suspension, the longest penalty in the sport's history related to performance-enhancing drugs. He was the only one of 14 players involved in the scandal to contest his penalty.
However, since the investigation is ongoing, it remains possible that more players could eventually face sanctions as a result of the Biogenesis probe. Rodriguez denied taking steroids while playing for the Yankees, though his cousin was banned from the team's clubhouse, charter flights and other activities after Rodriguez said Sucart obtained the steroids he used while playing for the Rangers.