Biggest draft steals in Colts history

2. Antoine Bethea

In the sixth round of the 2006 NFL Draft, Antoine Bethea joined the Colts and immediately made his presence felt. He started 14 games as a rookie and had 90 tackles. He ended up playing 14 seasons in the NFL with eight of those being spent in Indy.

Bethea was named to three Pro Bowls and had five seasons in Indy where he had triple-digit tackles. Overall, Bethea finished his Colts career with 805 tackles and 14 interceptions. He finished his lengthy NFL career with stints with the 49ers, Cardinals, and Giants and had over 100 tackles in three of his final four years.

Finding a tackling machine in the sixth round isn't an easy task but the Colts managed to do so when they drafted Bethea.

1. Robert Mathis

It doesn't seem believable but Robert Mathis fell to the fifth round of the 2003 NFL Draft and the Colts reaped the benefits of drafting him. Mathis played all 13 of his NFL seasons in Indianapolis and made it to five Pro Bowls and was crowned All-Pro once.

Mathis played 192 games and made 121 starts during his 13 seasons with the Colts and was a pass-rushing menance during that time. He had five seasons where he had double-digit sacks, including a career-high 19.5 sacks in 2013, which was pretty monumental considering that was his 11th year in the league.

It's hard enough finding solid pass-rushers at any point in the draft but finding an All-Pro caliber pass-rusher in the fifth round feels like a near impossible task. The Colts found one in Robert Mathis though. He's their biggest draft steal.