Jun 17, 2014; Santa Clara, CA, USA; San Francisco 49ers nose tackle Glenn Dorsey (90), outside linebacker Aldon Smith (99), nose tackle Mike Purcell (64) , defensive end Ray McDonald (91), cornerback Chris Cook (22), defensive tackle Demarcus Dobbs (83) and cornerback Tramaine Brock (26) warm up during minicamp at the 49ers practice facility. Mandatory Credit: Kelley L Cox-USA TODAY Sports