ATLANTA (AP) _ Federal authorities are investigating Atlanta Falcons wide receiver Tony Martin, whom they suspect of laundering drug profits, according to The Atlanta Journal-Constitution.

The paper said in Wednesday's editions that Martin's lawyer acknowledged a possible investigation into Martin's activities. Investigators are looking into whether or not Martin laundered drug profits for longtime friend and convicted drug dealer Rickey Brownlee, the paper said.

The U.S. Attorney's office in Miami and the Drug Enforcement Administration are heading up the investigation into the receiver, who was traded to Atlanta from the San Diego Chargers on June 3.

``No one has contacted me in an official capacity, but I've heard it from enough people to believe it,'' said Martin's attorney, Kieran Fallon. ``The U.S. Attorney's office doesn't usually send correspondence to someone detailing an investigation, but there's something there.''

Fallon said investigators have talked with Martin's family, friends and acquaintances.

Earlier this week Martin said he does not know if he is the subject of an investigation, but denies laundering any drug profits.

Fallon said he knows what is being said but has, ``no reason to believe Tony has done anything illegal.''

Martin leads the Falcons (5-1) this season with 27 catches for 492 yards and three touchdowns.