After suffering their first loss of the season on the road to the Minnesota Vikings, the San Francisco 49ers appear to be looking to bring in some help in the defensive secondary before moving on to a Week 3 contest against Matt Stafford and the Los Angeles Rams.

According to NFL Reporter Aaron Wilson, the 49ers worked out three defensive backs on Tuesday. Tre Herndon, Danny Johnson and Chandon Sullivan worked out for the 49ers, per Wilson.

Via @AaronWilson_NFL on Twitter

Herndon, played six seasons with the Jacksonville Jaguars before signing with the New York Giants in June. The Giants later released the former Vanderbilt Commodore. The veteran corner has started 34 games over his career with three total interceptions.

Johnson went undrafted out of Southern University in the 2018 draft before playing six seasons with the Washington Commanders. Johnson has recorded 14 pass deflections and one forced fumble in 66 career games with the Commanders.

Sullivan has bounced around the NFL since going undrafted out of Georgia State in 2018. Sullivan has had stops with the Philadelphia Eagles, Green Bay Packers, Minnesota Vikings and most recently the Pittsburgh Steelers. In 88 career games, the 28-eight-year-old has notched eight interceptions and two forced fumbles.

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This article originally appeared on Niners Wire: 49ers working out three defensive backs