Buffalo Bills injuries are driving late-roster churn as preseason winds down. Connor McGovern tweaked a hamstring and was held out of Friday’s practice and action, tightening concerns about the interior line ahead of Week 1. Darrynton Evans also suffered a hamstring issue in Friday’s joint practice, adding to the Bills’ bubble-backfield questions.

Four tryouts—Grant DuBose, Makai Polk, Jarveon Howard, Ricky Person—took place as Buffalo tries to shore up depth behind a loaded backfield. Receiver Kaden Prather remained in danger of a re-aggravation after an opening-window hamstring setback. With James Cook anchoring the run game and Ty Johnson and Ray Davis in the mix, Buffalo is weighing all options to keep starters healthy for the final preseason clash.

Rookie Jordan Hancock suffered a shoulder injury in Sunday’s game, though no official injury report has been issued. Buffalo will monitor these injuries closely as it pieces together a 53-man roster, leaning on depth at receiver and backfield while trying to avoid exposing key starters in the last exhibition.