Defensive players shuffle through agility bags at the start of practice.
Matt Barkley and fullback Stanley Havili line up in the backfield during 7-on-7 period.
Kicker Joe Houston lines up for a field goal.
Tailback Allen Bradford and Matt Barkley fill out the backfield in team drills.
Andrew McMahon (left), the lead singer of Jack Mannequin who fought through leukemia and is now in full remission, chats with Coach Carroll and Matt Barkley following practice.
