Texas Tech’s quarterback situation just got a whole lot more uncomfortable.

Another court ruling involving NCAA eligibility has temporarily knocked backup quarterback Tommy Castellanos out of the Red Raiders’ plans. A Kentucky court on Friday struck down the temporary injunction that had allowed Castellanos and other athletes to compete for a fifth season.

For Texas Tech, the immediate consequence is simple: Castellanos won’t be available for the Red Raiders’ game at Colorado.

There is at least some good news. Texas Tech does not have to worry about losing any victories because Castellanos previously appeared in games. He was considered eligible under the court order at the time he played.

The bigger concern is what happens next.

According to On3’s Pete Nakos, another hearing is scheduled for next week that could help determine Castellanos’ status going forward. Until then, Texas Tech has suddenly gone from having an experienced backup quarterback to being frighteningly thin behind starter Will Hammond.

Texas Tech can’t afford an injury to Will Hammond

With Castellanos unavailable, Tulsa transfer Kirk Francis and sophomore Lloyd Jones move up the depth chart.

Neither has much recent game experience to lean on.

Francis has attempted only one pass this season, while Jones has yet to see the field. That means Texas Tech is now potentially one Hammond injury away from putting an extremely inexperienced option behind center in a meaningful Big 12 game.

That’s not exactly a comfortable situation for Red Raider fans.

Texas Tech knows better than most programs how quickly quarterback depth can become important. Injuries at the position have been an almost annual problem in Lubbock. The last time the Red Raiders made it through an entire season without needing a backup quarterback to start at least one game was 2016, when Patrick Mahomes started every contest.

That history makes the Castellanos situation much more than a minor depth-chart shuffle.

Castellanos has also become a red-zone weapon

Losing Castellanos doesn’t just hurt Texas Tech’s insurance policy behind Hammond. It also takes away a player who has carved out a useful role in the offense.

Castellanos has thrown two touchdown passes and rushed for two more this season. Three of those four touchdowns have come in the red zone.

That matters because finishing drives has been one of Texas Tech’s concerns. Castellanos gave the Red Raiders another option near the goal line, where his athleticism and experience created problems for defenses.

Now offensive coordinator Mack Leftwich will have to find another way to replace that wrinkle against Colorado.

Texas Tech brought Castellanos to Lubbock for a reason. He wasn’t simply another quarterback filling out the roster. The Red Raiders invested in an experienced player who could step in if Hammond went down while also contributing in specialized situations.

For now, that investment is stuck in legal limbo.

The hope for Texas Tech is that Castellanos misses only the Colorado game and receives another favorable ruling next week. If that happens, this becomes little more than a frustrating one-week disruption.

If the ruling ultimately ends his season, though, Texas Tech will suddenly have one of the thinnest quarterback situations imaginable for a team with major goals.

The Red Raiders have plenty to play for, and Hammond is firmly in control of the offense. But history has repeatedly taught Texas Tech fans one lesson about quarterbacks: having a capable backup isn’t a luxury.

Sometimes, it’s the difference between keeping a season on track and watching everything change with one bad break.