He was selected second in the 1999 Cleveland Brownsexpansion draft, following Jim Pyne.[2] He finished his career with the Atlanta Falcons after recurring shoulder injuries. During his career Thierry played in 131 games and started 70 of them recording 33.5 sacks and 158 tackles with 7 fumble recoveries.[3]
Thierry died on November 24, 2017, of a heart attack at the age of 46.[4]