Article Photos: Pro football: Former Sooners defensive end Frank Alexander making strides with Panthers 1/1

NFL FOOTBALL: Carolina Panthers rookie defensive end Frank Alexander stops to sign an autograph for a fan as he walked to the team's practice fields to begin rookie minicamp drills in Charlotte, North Carolina, Friday, May 11, 2012. (Jeff Siner/Charlotte Observer/MCT) ORG XMIT: 1122822