Offensive linemen typically are the most anonymous players on a football team, but Tennessee Titans coach Mike Munchak has said those are the players who are most important to the team's success in 2013. Plus, with a head coach and position coach who are Hall of Fame offensive linemen, the Titans likely will be defined by how well that unit plays.
With that in mind, here's an introduction to those who so often are overlooked:
Drafted: Second round (41st overall), 2005 by the Titans
Height, weight: 6-foot-7, 315 pounds
Career highlights: He has started every game he has played since he entered the NFL and until last season he had not missed a single contest. He played at right tackle as a rookie and left tackle since. He made the Pro Bowl in 2008.
Of note: A native of Estonia, he travels extensively during the offseason including an annual St. Patrick’s Day golf trip to Ireland.
Drafted: Second round (51st overall), 2009 by the Buffalo Bills
Height, weight: 6-foot-2, 303 pounds
Career highlights: He is one of four players drafted in 2009 to start every game of the past four seasons. He was named to numerous all-rookie teams in 2009.
Of note: He has an ice cream flavor named in his honor. Lake Effect Artisan Ice Cream in Buffalo combined strawberry cheesecake ice cream and chocolate covered pretzels for their Levitreland flavor.
Drafted: Undrafted, signed as a free agent, 2008 by the Titans
Height weight: 6-foot-4, 308 pounds
Career highlights: He spent virtually all of his first two seasons in the league as a practice squad member and two more as a backup before he became a full-time starter in 2012. Of his 19 career starts, 15 have been at center and the other four at left guard.
Of note: He got engaged during the offseason while on vacation in the Cayman Islands. He proposed to his girlfriend of four years while swimming with the dolphins at Dolphin Cove.
Drafted: first round (10th overall), 2013 by the Titans
Height, weight: 6-foot-2, 323 pounds
Career highlights: He was the second offensive lineman taken in this year’s draft, and the first guard the Titans/Oilers selected in the first round since 1983. He was the starting left guard and part of three national championships at Alabama.
Of note: During his freshman and sophomore seasons at Westlake High School in Atlanta he was teammates with Auburn star and Heisman Trophy winner Cam Newton.
Drafted: Fourth round (113th overall), 2005 by the Titans
Height, weight: 6-foot-7, 318 pounds
Career highlights: He started 104 of 108 games from the beginning of 2006 through the 12th game of last season, when he sustained a season-ending broken leg. He was a second-team All-Pro in 2008.
Of note: An avid outdoorsman affectionately known as “Big Country,” he has participated in the Big Buck Outdoor Games, a charity bass fishing contest and turkey hunt, and filmed several episodes of Anything Wild.
BRIAN SCHWENKE (center, 6-3, 318): It is not a question of ‘if’ the 2013 fourth-round pick will be the starting center for the Titans, it’s a question of ‘when.’ It could be as soon as Week 1 of this season.
BYRON STINGILY (tackle, 6-5, 318): One of the most improved players of the last two seasons, the 2011 sixth-round pick made his first two starts in the final two weeks of last season and was a bright spot on an otherwise injury-ravaged line.
(guard/center, 6-4, 308): A sixth-year veteran signed as a free agent, he was a role player until last season when he started all 16 games (nine at center, seven at left guard) for St. Louis.
CHRIS SPENCER (center/guard, 6-3, 308): A ninth-year veteran signed as a free agent this offseason, he has played with Seattle and Chicago and has started more than 10 games in seven different seasons.
Drafted: First round (eighth overall), 1982 by the Houston Oilers
Playing height, weight: 6-foot-3, 281 pounds
Career highlights: He was enshrined in the Pro Football Hall of Fame in 2001, the fifth player in franchise history to get there. In 12 NFL seasons he was named to the Pro Bowl nine times and to the NFL’s all-decade team for the 1980s. The franchise retired his jersey number (63) in 1996.
Of note: The Pro Football Hall of Fame is not the only one that opened its doors to him. Munchak also is a member of the Pennsylvania, Texas and Polish-American Sports Halls of Fame.
Offensive line coach
Drafted: First round (ninth overall), 1983 by the Houston Oilers
Playing height, weight: 6-foot-5, 305 pounds
Career highlights: He was enshrined in the Pro Football Hall of Fame in 2007. He never missed a game because of injury in a career that consisted of 296 appearances, at the time an NFL record for a non-kicker. He earned 14 Pro Bowl invitations, was named a first-team All-Pro nine times and to the NFL’s all-decade team for the 1990s. The franchise retired his jersey number (74) in 2002.
Of note: He is the father of 7, including son Kevin, who currently is in the league, and Jake, who widely is projected as a top 10 pick in 2014.