Authorities in Argentina have accused former Colombia international Mauricio Serna of being part of a criminal organisation devoted to money laundering.
On Monday, Serna was named along with Victoria Henao and Juan Pablo Escobar Henao, the widow and son of Colombian drug lord Pablo Escobar.
All three are accused of being the link in Argentina for Colombian drug dealer Jose Piedrahita to launder money through real estate and a cafe.
Mariano Federici, who heads Argentina's Financial Information Unit, said Serna "eased the entry of Piedrahita's funds into Argentina through swapped real estate operations, here and in Colombia."
Piedrahita was arrested in Colombia last month and is wanted for extradition to the U.S.
The Department of Justice says he also bribed a federal agent with cash and prostitution to get his name removed from a cocaine-smuggling case.
A midfielder during his playing days, Serna helped Boca Juniors to win the Copa Libertadores in 2000 and 2001 and lift the 2000 Intercontinental Cup after beating Real Madrid.
Earlier this month, reports said Serna had been named in a money laundering investigation.
The Escobar family has lived in Argentina since the 1990s. Neither the family nor Serna could not be reached for comment.