Seyi Ajirotutu signed with the team Friday, a source said. The wide receiver and former Fresno State teammate of Ryan Mathews has been a Charger on-and-off since arriving in 2010 as an undrafted rookie free agent. He made the practice squad and, amid injuries, was promoted to the active roster for the final 10 games. The height of his production came in a four-catch, 111-yard and two-touchdown breakout against the Texans, making him something of a fan favorite. After the Panthers claimed the 6-foot-5 receiver when San Diego waived him in 2011, he re-joined the Chargers in 2012, playing three games with one start. Source: San Diego Union Tribune
