|No. 34, 39|
|Born:||August 8, 1988|
|Height:||5 ft 10 in (1.78 m)|
|Weight:||208 lb (94 kg)|
|High school:||Justin F. Kimball (Dallas, Texas)|
|College:||Middle Tennessee State|
|* Offseason and/or practice squad member only|
|Career highlights and awards|
|Career NFL statistics|
|Player stats at PFR|
In his final year, he rushed for 1,705 yards and scored 29 touchdowns, on his way to being named All-district and District Player of the Year. He finished his high school career with 4,275 rushing yards and 76 touchdowns. He also lettered in track.
Tanner accepted a scholarship from Middle Tennessee State University. As a true freshman, he played 13 games as a defensive back in nickel situations, tallying 16 tackles and one sack. He also practiced track.
The next year, he was switched to running back, playing in nine games (one start), while recording 64 carries for 299 yards and 4 touchdowns. As a junior, he played in 12 games (4 starts), leading the team in rushing yards (714) and rushing touchdowns (15), while also becoming the first player in Sun Belt Conference history to receive both Offensive and Special Teams Player of the Week awards in the same week.
He became a full-time starter as a senior, but was forced to redshirt after starting two games, because of a bone contusion he suffered in his knee during a game. In 2010, he recorded 13 starts, 160 carries for 928 yards (led the team) and 13 touchdowns. He finished his collegiate career with 430 carries for 2,024 yards and 33 touchdowns. He also lettered in track.
Tanner signed with the Dallas Cowboys as an undrafted free agent after the 2011 NFL Draft. On August 21, playing against the San Diego Chargers at Cowboys Stadium, he lost his helmet while scoring a touchdown in the second half of the game. A new rule canceled the touchdown, because it states that if any player loses his helmet while receiving, running, or intercepting a football, the play will end once the helmet has hit the field. He recorded his first professional carry and touchdown on October 23, against the St. Louis Rams. On December 9, he was placed on injured reserve due to a hamstring injury.
On February 23, 2014, after he was set to count $1.389 million against the salary cap, the Cowboys did not offer a restricted free agent tender, making him a free agent. During his time with the team, he mainly played on special teams, while registering 56 carries for 149 yards and 2 touchdowns as a backup running back.
Tanner entered the coaching ranks, and in 2019 was serving as a special teams assistant coach for the Dallas Cowboys, his original team.