Collins (hamstring) wasn't spotted at the media-access portion of Wednesday's practice, DJ Bien-Aime of ESPN.com reports.
Since injuring his hamstring at practice last Wednesday, Collins hasn't logged any notable on-field work, which lines up with a report from Aaron Wilson of KPRC 2 Houston that the wide receiver has a chance to miss two games as a result. Collins likely will need to mix into drills at some point by week's end in order to have a chance to suit up Sunday at Indianapolis.