‘Sweeney, a seventh-round draft pick out of Boston College, has risen up the depth chart this summer mostly because of what’s happening around him. Presumed starter Tyler Kroft, veteran Jason Croom and third-round draft pick Dawson Knox all currently are out with injuries. That has given Sweeney the chance to work with the starters, including Friday night as part of the team’s “Return of the Blue and Red” practice in front of about 10,000 fans at New Era Field.’