Three-time Pro Bowl offensive tackle Donald Penn announced his retirement on Monday after signing a one-day contract with the Las Vegas Raiders. Penn was an undrafted free agent out of Utah State and played 14 seasons in the NFL, including five with the Raiders and eight with the Tampa Bay Buccaneers. He did not play in 2020. The 37-year-old played in 194 career games (189 starts), including 66 games and starts with the Raiders. He immediately became a stalwart at left tackle after signing with the Silver and Black as a free agent in 2014. Penn played almost exclusively at left tackle in his 14-year career and played in 112 games (108 starts) in his first eight NFL seasons with the Buccaneers.