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.

Al-Hajj Shabazz, CB, 2016

Shabazz was on the field for nine special teams snaps in the franchise's second-ever win at Indianapolis. On Thanksgiving night, two weeks before, he logged three special teams snaps for the Steelers in a road win over the Colts. Two weeks weeks after his one game as a Texan, he was a Steeler again, and played 11 special teams snaps in a Christmas Day victory over the Ravens in Baltimore.

The West Chester product ultimately played in eight NFL games, all in 2016 for Pittsburgh and the Texans, and he registered a special teams tackle.

Josh Aubrey, S, 2014

Aubrey played his college ball in Nacogdoches at Stephen F. Austin, and the Texans were his second NFL team in three seasons. In a pair of games with Houston in 2014, Aubrey logged 18 special teams snaps. Houston lost on the road at Dallas and at Pittsburgh in those contests.

The year before as an undrafted rookie in 2013, saw action in six games with the Browns. In Week 15 of 2015 as a Titan, he was on the field for 16 special teams snaps in a loss at New England.

Ray Graham, RB, 2013

In the final game of a disastrous 2013 for the franchise, Graham carried the ball four times for eight yards, and caught a pass for 12 yards in a Texans' loss at Tennessee. It would prove to be the only NFL action of Graham's NFL career. He'd signed with the team as an undrafted free agent after a collegiate career at Pitt.

Arian Foster, RB, 2009 (also wore 27 and 23)

Before he settled in at #23, Foster wore a pair of numbers ending in 7 during his rookie season. His month of December that year set the stage for the rest of his time as a Texan, as Foster closed his first year in the NFL with a combined 39 carries for 216 yards and three touchdowns in the final two games.

The Texans won their final four games of that season to finish at 9-7 and above .500 for the first time in franchise history.

Cornerback Dunta Robinson, who wore #23 from 2004-2009 with the Texans, departed in free agency during the 2010 offseason, and Foster snapped up Robinson's old number.

Cecil Sapp, RB, 2008

The last of Sapp's six NFL seasons was in Houston, and he played 12 games for the Texans in 2008. Most of his action came on special teams, but he carried the ball once for a loss of three yards in the Texans' win at snowy Green Bay that December, and again for no gain next week at home in a 13-12 triumph over the Titans.

Sapp was a familiar face to head coach Gary Kubiak, as the two were together in Denver from 2003 through 2005. Kubiak came to the Texans in 2006, and Sapp arrived two seasons later.

The former Colorado State Ram rushed for 4.3 yards per carry in his career, with a pair of rushing scores and one touchdown catch.

Darius Walker, RB, 2007

In the final four games of 2007, Houston went 3-1 to finish at .500 for the first time in franchise history. Walker was a key part of that, starting twice in that span, carrying the ball 58 times for 264 yards and a score, and also catching 13 passes for 81 yards.

In the season finale, he scored on a 1-yard run, and it was the final touchdown of the day in a 42-21 romp over the Jaguars. He rumbled for 86 yards on 10 carries in that win, and peeled off a 41-yarder a few plays before his 1-yard touchdown.

Walker averaged 4.6 yards per carry, gained 3,249 yards on the ground and ran for 20 touchdowns in three years at Notre Dame.

Domanick Davis (Williams), 2003-2005

Davis' time as a Texan was brief, but memorable. He ran for 1,000 yards in his first two seasons, and went for 976 yards in 2005.

A fourth round pick out of LSU in 2003, Davis carried 238 times for 1,031 yards and eight touchdowns as a rookie. His breakout game came as a reserve at Tennessee in Week 6, when he needed just seven carries to pick up 59 yards, while also catching seven passes for 70 yards. He started the next week, and was entrenched as the lead back for the next two years as well.

2004 saw the Texans' record jump to 7-9, and Davis turned in his finest season as a pro. In 15 starts, he rumbled for 1,188 yards on 302 carries, with 13 touchdowns. Davis also caught 68 passes for 588 yards and a score.

His last year on the field came in 2005, and in 11 starts he'd amassed 976 rushing yards and a pair of scores. In his final start as a Texan, Davis ran 22 times for 139 yards, and caught seven passes for 50 yards in a Week 14 13-10 loss at Tennessee.

Davis changed his surname to Williams in late 2006.

Near the end of March, 2007, he was released by the Texans.

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