"The Colts’ secondary is one of the best in the NFL when Marlin Jackson and Kelvin Hayden are healthy. They are two of the best corners in the league. Even without Jackson, they have been OK. Tim Jennings has been solid. Getting Hayden back against San Diego was a big boost."PFW's The Way We Hear It section, which quotes "league sources" anonymously. The Colts pass defense has allowed only 4 passing TDs all season thus far and snatched 17 INTs.