The most notable performance of Dawan's career was against Auburn in 2005 when he accumulated 10 tackles and an interception to help defeat the Tigers at Jordan–Hare Stadium 24–13.

[4] Throughout training camp, Landry competed to be the starting free safety against Gerome Sapp, Jamaine Winborne, B.J.

Dawan's rookie season for the Baltimore Ravens saw him earn a starting spot in the defensive secondary alongside fellow safety Ed Reed.

However, in the second game, against the Cleveland Browns, he suffered what could have been a career-ending spinal concussion injury, tackling former Baltimore Raven Jamal Lewis.

By all accounts, he enjoyed a successful comeback, posting career highs in tackles with 89, and passes defensed with 8.

In a game against the Carolina Panthers, fellow safety Ed Reed caught an interception, which he then lateraled to Landry, with Dawan taking it 23 yards for the go-ahead touchdown.