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.

Former Golden Bears cornerback Cam Bynum, who has been a starting safety for the Vikings the past three season, has agreed to a four-year, $60 million deal with the Indianapolis Colts, according to the Indianapolis Star.

"Camryn Bynum is a nice addition to a defense that was one of the worst at defending deep passes last season. Bynum isn’t necessarily a value at $15 million per year, but he’ll only be 27 at the start of next season and could easily fulfill this deal given how durable he’s been in starting 17 games the last three seasons.