The Mets suspended Samuels last week, the team announced Thursday in a statement.
"Last Wednesday, the Mets suspended Charlie Samuels indefinitely without pay," the statement read. "As this is an ongoing personnel matter, we have no further comment."
Multiple New York news outlets reported that Samuels is under investigation by the New York Police Department and Queens District Attorney's office for allegedly betting on sports, including baseball, as part of an organized gambling operation. The Associated Press reported on Friday that a source had confirmed Samuels admitted to betting on baseball to an MLB investigator in the last few weeks. The league reportedly believes that most of Samuels' betting involved NFL games.
Referencing law-enforcement sources, the New York Daily News reported on Friday that the longtime clubhouse manager is also being investigated for using team accounts to cover gambling and personal debts.
In a story posted on its website late Friday, The New York Times reported that Mets closer Francisco Rodriguez lived with Samuels in August after a judge ordered him to stay away from his girlfriend after getting into a fight with her father. Citing "two people briefed on the matter," The Times reported that the information about Rodriguez "came to light" during the investigation of Samuels.
In addition, Samuels is reportedly under suspicion of skimming money on players' hotel rooms that he arranged for as the team's traveling secretary, and for allegedly stealing property from the clubhouse, including hundreds of bats, balls and jerseys.
Samuels, who has been with the Mets since 1976, has served as the team's clubhouse manager for 27 seasons. His suspension came two days before the Mets hired new general manager Sandy Alderson.