Joint practices with the Denver Broncos are set to ignite the NFL preseason, with the 49ers focusing on their evolving offensive line. Ben Bartch has emerged as a key player, having seemingly secured the left guard spot after a strong performance against the Bills. His ability to drive defensive linemen and create running lanes has impressed coaches, suggesting the 49ers may have upgraded from last year's setup with Aaron Banks.

As the team preps for the Broncos, their defensive front is also under scrutiny, particularly how rookies like CJ West respond to the challenge. With joint practices highlighted as crucial for player evaluations, the performances here could significantly impact roster decisions moving forward.