The Tampa Bay Buccaneers have signed free-agent cornerback Josh Robinson, the team announced Monday.

Robinson played the first four years of his career with the Minnesota Vikings after being selected in the third round of the 2012 draft.

He appeared in 47 games over that stretch, making 21 starts and recording five interceptions.

The signing adds some much-needed competition in the defensive backfield coming off a season in which Tampa Bay allowed opposing quarterbacks to post a quarterback rating of 102.5, second only to the New Orleans Saints among the league's worst marks.