What's in a number? HoustonTexans.com is taking a look back at the numerical roster of the franchise, and going over every number that's been worn in team history. From the memorable ones like 99, 80, and 4, to some that might not ring a bell, we've got them all covered.

Greg Mancz, OL, 2015-Current (Bday: 4/23/1992) – An undrafted free agent from Toledo in 2015, Mancz started all but 1 snap at center in 2016. The Texans won the AFC South that year. From 2017 through 2019, he would start a combined 12 games all along the offensive line for the Texans. Mancz has proven to be a valuable member of the offensive front, capable of filling in or starting at a variety of spots.

Mike Brisiel, OL, 2007-2011

Brisiel spent five seasons in Houston, starting 47 games at right guard for the Texans. He played his college ball at Colorado State, and spent 2006 on the practice squad.

He played in NFL Europe with the Hamburg Sea Devils in the spring of 2007, and then wound up starting four games for the Texans that season.

Brisiel, who was nicknamed 'Biscuit', started every game of the 2008 season at right guard. 2009 saw him start just five games because of injury, but he was the starter for nine games in 2010 and 13 games in the team's first playoff season of 2011.

He signed a free agent deal with the Raiders in 2012, and started 15 games for Oakland that year, and another 15 in 2013.

Ryan Schau, OL, 2002

Schau played four NFL seasons, and his final year came in Houston's first. Schau started four games on the offensive line in 2002 for the Texans, in Weeks 6 through 9.

He was up front for the Texans for their first road win in franchise history, a 21-19 triumph at Jacksonville on October 27 of that year.

Schau's last NFL appearance came in Week 9, when the Texans got thumped by the Bengals, 38-3 in Houston.

A University of Illinois product, Schau was an undrafted free agent who signed with the Eagles in 1999, and played there for three seasons before joining the Texans.