Sources: Tony Clark to resign as MLBPA executive director - ESPN

Tony Clark plans to resign as executive director of the Major League Baseball Players Association, sources told ESPN's Jeff Passan and Don Van Natta Jr.

Clark's resignation comes in the wake of the Eastern District of New York's investigation into alleged financial improprieties at the union.

Clark also is stepping down as the union and MLB are preparing to negotiate a new collective bargaining agreement. MLB's current CBA expires on Dec. 1.

The MLBPA was scheduled to hold its first meeting with players this spring at the Cleveland Guardians' camp Tuesday. That meeting was abruptly canceled, however, and leaves the union without its top leader in a bargaining year.

Clark, 53, joined the MLBPA in 2010 after a 15-year career as a player in the majors. He took over as the union's executive director in 2013 after the death of Michael Weiner.