Texans placed LB Cato June on injured reserve with a broken forearm.

The Texans probably weren't counting on June for a big role, so there was little to no reason to keep him on the roster while he was sidelined for the six or eight games. Source: National Football Post

So does this open up a projected roster spot? Does Buster Davis now make the team?

Good Job, EHTR.  Thanks for keeping everyone informed. - Jake