Montgomery did not play in Houston's preseason game against Las Vegas on Thursday, according to Texans Wire.
The Texans went with a mixed crew of starters and backups to open their second preseason game. It's probably a good sign for Montgomery's Week 1 role that he was among the players rested, though second-string RB Woody Marks took advantage of the opportunity with a 20-yard TD scamper on which he broke two tackles. Montgomery still figures to get the start and most of the carries in a Week 1 home game against Buffalo.