<p>The Atlanta Falcons waived rookie safety Etric Pruitt and signed linebacker Terrence Melton from the practice squad before Sunday's game against the San Francisco 49ers.</p><p>Pruitt, a sixth-round selection from Southern Mississippi, was dropped in favor of Melton, who played in the CFL last season. Melton was cut by the Falcons last Sunday, then signed to the practice squad.</p>