Nashville, TN (SportsNetwork.com) - Tennessee Titans offensive tackle Michael Roos announced his retirement Thursday.
Roos spent each of his 10 NFL seasons with the Titans and was a 2008 All-Pro selection.
"After 10 years as a Tennessee Titan I have decided to retire from football," said Roos on his Instagram account. "I have given this decision much consideration. I feel fortunate to have played this long coming from a TE turned DE turned OT from Eastern Washington University."
Roos suffered a knee injury last October and played only five games after missing just one game in his previous nine NFL seasons.
"To all the men I've shared the field with: I'm honored to have called you teammates. We have made memories for many lifetimes.
"I'm excited to begin the rest of my life, and I am grateful to do so now, while I am fully healthy...Thank you Titans fans for your support all these years. Cheers!"
The Titans selected Roos in the second round of the 2005 NFL Draft. He started all 148 games he played for the Titans, including 119 to begin his career before an emergency appendectomy kept him sidelined for one game in 2012.