Bills coach Doug Marrone told NFL Network's Ian Rapoport he believes seventh-round LT Seantrel Henderson "can be special."
Bills GM Doug Whaley said rookie Seantrel Henderson will open training camp as the starting left tackle.
Bills seventh-round OT Seantrel Henderson saw time with the first-team offense during OTAs.
The Bills have told seventh-round OT Seantrel Henderson that he has "one shot."
Bills signed No. 237 overall pick OT Seantrel Henderson to a four-year contract.
Bills selected Miami OT Seantrel Henderson with the No. 237 overall pick in the 2014 NFL draft.
Sources tell ESPN's Adam Schefter that Miami OT Seantrel Henderson tested positive for marijuana at the NFL Combine.
Miami OT Seantrel Henderson failed to finish his Pro Day workout on Thursday because he felt "dehydrated and sick."