The Pittsburgh Steelers have agreed to trade their prolific but disgruntled wide receiver to the Oakland Raiders in exchange for a third- and fifth-round pick, a source told ESPN's Adam Schefter.

Brown will receive a new three-year deal worth up to $54.125 million from the Raiders, with $30.125 million guaranteed, the source said. He previously had three years and $38.9 million left on his contract with the Steelers, with none of the money guaranteed.

In the end, Brown converted the Steelers' four-year extension at $17 million per year into what amounts to $19.8 million per year in new money.