Rob Callaway

He played college football at Saginaw Valley State.

Callaway attended Beecher High School, where he played offensive tackle, defensive tackle and defensive end. He also practiced track.

He accepted a football scholarship from Division-II Saginaw Valley State University. As a freshman, he played in the last 5 games of the season, making 4 starts at defensive tackle and 5 stops.

As a sophomore, he appeared in 5 games with one start, making 2 tackles (0.5 for loss). As a junior, he appeared in 10 games as a backup defensive tackle, tallying 11 tackles.

As a senior, he started all 12 games, registering 25 tackles (6 for loss), 3.5 sacks and 3 blocked kicks.

Detroit Lions

Callaway was signed as an undrafted free agent by the Detroit Lions after the 2010 NFL Draft on April 30. On August 7, he was waived and signed to the practice squad two days later.

In 2011, despite posting a sack and a forced fumble in the preseason, he was released by the Lions due to their pre-existing depth at the position on September 3.

Dallas Cowboys

On September 8, 2011, he was signed to the Dallas Cowboys practice squad. He was cut on October 28. He was re-signed on November 1. He was released one day later and re-signed on November 8.

On January 2, 2012, he was signed to a 3-year extension. He was released on September 1 and later signed to the practice squad. On December 8, he was promoted to the active roster. He appeared in 2 games and was declared inactive for the last 2 contests.

In 2013, he suffered a knee injury during organized team activities. He underwent career-ending microfracture surgery and was waived injured on July 11.