Here's a look at five current NFL free agents the Minnesota Vikings can sign to replace Camryn Bynum, who signed Monday with the Indianapolis Colts.

The Indianapolis Colts are making a big upgrade to their secondary, having agreed to sign former Minnesota Vikings safety Camryn Bynum to a four-year deal, according to Tom Pelissero of the NFL Network.

To be fair, Bolden, 25, was acquired as a depth piece for the safety room -- not a replacement for Bynum. The Vikings are hopeful to have Harrison Smith return this season and re-signed Theo Jackson to an extension that suggests he's going to see the field more.