Packers release DL B.J. McBryde and RB Don Jackson

On the eve of training camp, the Green Bay Packers continue to tinker with their roster. In addition to declaring six players physically unable to perform, the team released defensive lineman B.J. McBryde and running back Don Jackson.

Of the two, McBryde spent the most time in Green Bay. He joined the Packers practice squad in Week 11 last season and returned for minicamp earlier this year. He previously spent time with the Philadelphia Eagles. Jackson arrived shortly after the conclusion of the 2016 NFL Draft, signing as an undrafted free agent to the team's 90-man roster. Though the Packers did not specify, both likely failed physicals upon reporting for camp.

Acme Packing Company projected both as practice-squad candidates prior to their releases.

The moves leave the Packers with just 88 of their 90 roster spots filled. The team can either leave those spots vacant or add players through a free-agent signing or trade.

Green Bay's training camp begins Tuesday, one of the first to formally kick off. The earlier start to camp comes as a result of the Packers appearing in the Hall of Fame game in Canton, Ohio on Aug. 7.