The Arizona Cardinals held their first fast-paced day of training camp. A linebacker went down with an injury, but some starters looked sharp.

The Arizona Cardinals had their first public practice of training camp on Thursday, getting work in at State Farm Stadium in front of fans. As has been reported, they cut practice short because of a scary injury when rookie safety Kitan Crawford and fourth-year linebacker J.

www.si.com/nfl/cardinals Arizona Cardinals Training Camp Notebook: Day 2 When speaking with reporters after practice, Calais Campbell said he told Walter Nolen to let his calf injury completely heal instead of trying to rush back.