Updated: August 5th, 2011 7:54pm - 1,448 views

Tom Pelissero of 1500 ESPN Twin Cities discusses several position battles the Minnesota Vikings have to sort out, including safety (Tyrell Johnson vs. Jamarca Sanford), nickel cornerback (Chris Cook vs. Asher Allen) and weakside linebacker (Erin Henderson vs. Jasper Brinkley). Full coverage of Vikings training camp live from Mankato is online at 1500ESPN.com