Headlining the quarterback group will be Texas commit Sam Ehlinger and Oklahoma pledge Chris Robison, who have both been committed to their respective schools since last summer. Scout ranks Ehlinger as the No. 2 quarterback in the state of Texas and the No. 7 quarterback nationally. Robison is No. 4 among Lone Star State quarterbacks and No. 13 nationally. Both players are in the top 160 prospects of the Scout 300 -- Ehlinger at No. 65, Robison at No. 155.
Texas Tech will also have a QB commit on hand in longtime pledge Xavier Martin. Other 2017 quarterback prospects with FBS offers who are expected to compete include Ty Brock, Miklo Smalls, Jaylen Gipson, and Seth Washington. The 2018 class will be well-represented with prospects such as Jalen Mayden, Marcellus Rivers, and Julon Williams.
The running back position may be the deepest group at The Opening Houston.
Two top 100 prospects are expected to work out with the running backs: Toneil Carter Jr., the No. 62 player in the Scout 300, and Ohio State commit J.K. Dobbins, the top athlete prospect in Texas and the No. 79 player in the Scout 300. Carter has a slew of offers from programs such as Alabama, Arkansas, LSU, Notre Dame, Texas A&M, and others.
The underclassmen ranks will feature very good talent at the running back position with players such as four-star Craig Williams (2018), B.J. Foster (2018), and Deondrick Glass (2019), who already has offers from Arkansas, Florida State, and Tennessee.
Three Scout 300 wideouts and several of notable 2018 prospects headline the receiver group
Texas A&M commit Mannie Netherly, Baylor commit Hezekiah Jones, and Oklahoma pledge CeeDee Lamb are a trio of four-star receivers expected to participate in Sunday's event. Scout ranks Netherly, Jones, and Lamb at No. 4, No. 6, and No. 10, respectively, at the receiver position in the state of Texas' 2017 class.
There's also a Scout 300 four-star athlete who will compete with the receivers: KD Nixon, who is the No. 2 athlete in Texas and a top 165 prospect nationally. R.J. Sneed and new Wisconsin commit Cade Green are also among the 2017 group expected to perform.
Some of the notable 2018 players to watch will be Jalen Preston, Al'vonte Woodard, Quandree White, and Joshua Moore. Preston, a four-star prospect, already has offers from Baylor, LSU, Michigan, Michigan State, Texas A&M, Houston, and Wisconsin.
Scout expects a very strong tight end group at Sunday's event headlined by a couple of 2018 standouts in four-star Mustapha Muhammad and early Alabama pledge Malcolm Epps, a big, athletic prospect at 6-foot-7, 235 pounds. Muhammad has reached double-digit offers, including Alabama, Baylor, LSU, Ole Miss, Oklahoma, Texas, Texas A&M, Houston, Michigan, and Nebraska.
Those underclassmen join a solid trio of seniors-to-be in Chance McLeod, Parker Eichenberger, and Cade Brewer. McLeod and Brewer fit the more modern version of a flex tight end or H-back, while Eichenberger possesses the size of the more traditional in-line tight end.
UTSA has offered all three players. McLeod also has a Kansas offer. Eichenberger has additional offers from Houston, Illinois, North Texas, Texas State, New Mexico, and UNLV, Brewer holds offers from North Texas, SMU, Texas State, and Bowling Green.
The offensive tackle position could be the strongest position at Sunday's event.
All four of those players are Scout 300 prospects. Scout ranks Little at No. 75 overall in the Scout 300, while Deculus, Reed, and Farrar rank Nos. 123, 128, and 263, respectively. All four players have a slew of major offers. Walker has heard from Alabama, Baylor, Ole Miss, Stanford, and Texas A&M, among many others, while Deculus has offers from Bama, Baylor, Georgia, LSU, and Michigan, among plenty of others.
Texas is believed to be the frontrunner for Reed, whose cousin played for the Longhorns, but schools such as Baylor, Oklahoma, Tennessee, Texas A&M, and UCLA are also in hot pursuit. Farrar committed March 4 to UCLA, which he picked over almost 30 other offers.
Stephan Zabié -- owner of almost double-digit offers including Oklahoma, Texas A&M, and Missouri -- is another talented 2017 tackle expected to attend, as well as major 2018 tackle prospects Colten Blanton and Nigel Brannon. Blanton has early offers from Oklahoma, Texas A&M, and Texas Tech.