Jim Harbaugh doesn’t want any film of his teams open practice trickling out into cyberspace, so he’s taken measure to ensure that everything stays private.
Students will not be allowed to bring in phones to Harbaugh's open practice … How's that Black Sabbath song go again?
— Nick Baumgardner (@nickbaumgardner) August 22, 2015
Phone blackout is because the team is doing red zone work, team doesn't want pictures coming out.
— Ben Fidelman (@bfidelman) August 22, 2015
Harbaugh has taken great pains to keep any information about the team out of the public eye leading up to the Sept. 3 opener at Utah.