Collins (hamstring) is "very much in doubt" for Sunday's game against the Colts, Ian Rapoport of NFL Network reports.
Another missed practice for Collins on Thursday left his Week 3 availability very much up in the air, and Rapoport's comments indicate it's more likely than not Collins will miss a second straight game. Another official update on Collins will be come when the Texans release their final injury report of the week Friday afternoon.