Turner attended St. Augustine High School in New Orleans, Louisiana. He played offensive tackle in high school but was projected to play offensive guard in college. He helped St. Augustine average over 300 yards rushing a game and was selected for the 2011 PrepStar All-American team. He was also a member of The Times-Picayune's Blue Chip list and was selected to play in the 2010 Darren Sharper Lake Pontchartrain All-Star Football Classic. Turner was rated as a four-star recruit by Rivals.com and the 14th best offensive guard in the country.
College career
Turner attended Louisiana State University from 2011 to 2013. After redshirting as a freshman in 2011, he played in 12 games and made seven starts as a redshirt freshman. He made his first start at right guard in a win over number 3 ranked South Carolina. In 559 snaps, Turner finished 2nd on the team with 51 pancake blocks. LSU had a 100-yard rusher from four of the seven games in which Turner started. In his redshirt sophomore year, Turner started and played in all 13 games. In 857 snaps, he recorded 64 pancake blocks and in his final collegiate game at the 2014 Outback Bowl, Turner registered a season-high 10 pancake blocks and helped pave the way for 220 rushing yards against Iowa in a win. For his career, Turner played a total of 1,416 snaps with 115 pancake blocks. He opted to forgo final two years of eligibility at LSU and entered into the 2014 NFL Draft after his sophomore season.
Professional career
Turner surprised many with his decision to enter the 2014 NFL Draft as he only had 20 career college starts. While he was highly regarded within NFL draft circles, many believed that by spending another year in school, Turner could have solidified himself as a first round draft pick in the 2015 NFL Draft. His power as a run blocker, mean streak, and length drew comparisons to Marshal Yanda. At the 2014 NFL combine, Turner surprised many analysts with his speed and athleticism, recording the fastest 40-yard dash among offensive guards. Dallas Cowboysexecutive vice presidentStephen Jones noted after the 2014 NFL Draft that had the Cowboys not traded the number 78 overall selection in a deal to move up to select Boise State defensive end DeMarcus Lawrence, they would have used that pick to draft Turner, whom they regarded as an immediate starter.
Carolina Panthers
Turner was drafted by the Carolina Panthers in the third round of the 2014 NFL Draft.
2014 season
On June 4, 2014, Turner signed a four-year contract. As a rookie, during the preseason, Turner won the starting right guard position on the Panther offensive line over veteran Chris Scott. Turner made his NFL debut on September 7, 2014 in Carolina's 20-14 win over the Tampa Bay Buccaneers. Turner made his first NFL start during the Panthers week 5 victory over the Chicago Bears. His emergence into the starting lineup helped the Panthers rank seventh in the NFL in rushing, including a league-leading 975 yards over the last five games. On December 23, 2014, Turner was named to Sports Illustrated All-Rookie Team. Through 618 snaps in the season, Turner did not allow a single sack and Turner surrendered just 11 quarterback disruptions.
2015 season
Turner picked up where he left off from his strong rookie season. Through the first three games, he did not allow a sack and surrendered just three quarterback pressures. Turner had not allowed a sack for the past 627 snaps, the third longest streak in the NFL at left guard. Through six games, Turner allowed just eight hurries as a pass protector and as a run blocker, he rated as PFF's fourth best run blocker in the NFL. Further, through nine weeks, Turner ranked as PFF's 4th best guard in the NFL. Turner was selected for his first career Pro Bowl during the season. Turner could not play in the Pro Bowl due to the Panthers appearance in Super Bowl 50. For the season, Turner allowed just one sack all season despite a passing attack that held the ball longer than most and targeted downfield often. Further, Turner was charged with only 2.5 blown blocks in 1,074 snaps played. The only full-time guard with a better rate of blown blocks per snap was Dallas' Zack Martin. According to PFF, Turner also had the seventh-highest pass-blocking efficiency among guards. On September 6, 2016, Turner became the first solo offensive lineman since Nate Newton to appear on the cover of Sports Illustrated. On February 7, 2016, Turner was part of the Panthers team that played in Super Bowl 50. In the game, the Panthers fell to the Denver Broncos by a score of 24–10.
2016 season
Turner started all 16 games at the right guard position for the Panthers in 2016, earning his second consecutive Pro Bowl.
2017 season
On July 20, 2017, Turner signed a four-year, $45 million contract extension with $20.5 million guaranteed. He started 13 games at right guard before missing the final three games with a concussion. He returned in the wild card round of the playoffs, playing in every offensive snap as the Panthers lost 31-26 to the Saints. Turner was named to his third straight Pro Bowl as an injury replacement.
2018 season
Turner started 13 games in 2018, missing Week 2 and 3 with a concussion and Week 17 with an ankle injury. He also was named to his fourth straight Pro Bowl.
2019 season
Turner started 13 games in 2019, missing three due to injury. Furthermore, Turner was named to his fifth straight Pro Bowl.
Los Angeles Chargers
On March 4, 2020, the Panthers agreed to trade Turner to the Los Angeles Chargers in exchange for Russell Okung. The deal became official on March 18.
