Starting right tackle Bryan Bulaga went down with an ankle injury. The severity is not yet known, but young backups may be called upon Saturday in Denver.
GB's young running backs broke tackles at Washington, but must find the right hole in Denver on Saturday.
Giants beat Brewers 4-2 to take series 2 games to 1.
Packers starting right tackle limped off the practice field on Wednesday.
All of OTA and minicamp practices will be open to the public and will take place at Clarke Hinkle Field.