Linebacker Derrick Morgan, who spent his entire nine-year career with the Tennessee Titans, announced his retirement on Monday.Morgan, 30, posted 44.5 career sacks with the Titans. He was drafted 16th overall out of Georgia Tech in 2010.”It’s been real,” Morgan wrote in an Instagram post. “I’ve been playing this game since I was 9 years old. Over the years it’s brought a lot of struggle, triumph, adversity and joy to my life. It’s help shape me into the man I am today. But for the longest the game was ‘who I was’..it was my IDENTITY. I didn’t know who Derrick Morgan was outside of this game. I tried to shake this reality in a business that tells you your value IS your performance. However the one thing that helped me evolve as a man over the years was knowing that I couldn’t play this game forever..that there was life after football. I realized early on the importance of this platform and my goal has been to use it for good.”Morgan played the final year of a four-year, $27 million contract in 2018 and was hampered by shoulder and knee injuries.