The Las Vegas Raiders have agreed to acquire cornerback Taron Johnson from the Buffalo Bills in a trade that involves an exchange of draft picks, according to a person with knowledge of the deal who spoke to The Associated Press on Sunday.

Under the terms of the agreement, the Raiders will receive Johnson and a seventh-round draft pick, while sending a sixth-round selection to Buffalo. The person spoke on condition of anonymity because Johnson must still pass a physical examination before the trade can be completed.

The transaction cannot be finalized until Wednesday, which marks the first day of the NFL's new league year. NFL Network was first to report the trade agreement between the two teams.

The Bills had previously announced their intention to release Johnson, but the trade allows Buffalo to receive compensation rather than simply cutting the veteran defensive back. Johnson's move to Las Vegas represents the latest roster adjustment as both teams prepare for the upcoming season.

The trade provides the Raiders with additional depth in their secondary while giving the Bills draft capital in return for a player they were planning to release.