He played college football for the University of Iowa and received unanimous All-American recognition.

He attended East Buchanan High School in Winthrop, Iowa and starred in football, basketball and track.

In football, he played tight end and linebacker and also handled punting and kickoff duties.

After redshirting in 1999, Gallery had three catches for 52 yards as a starting tight end as a freshman before moving to the tackle position.

As a sophomore, Gallery started every game at left tackle and made vast improvements throughout the year.

As a junior in 2002, Gallery started all 13 games at left tackle and was a first-team All-Big Ten selection.

In the Raiders' first game of the 2006 regular season, Gallery was part of an offensive line that surrendered nine sacks (at least three of which were charged to him) to the San Diego Chargers.

[6] On July 27, 2011, Gallery agreed to join the Seattle Seahawks on a three-year deal[7] worth a reported $15 million.