EL SEGUNDO, Calif. (AP) — Keenan Allen walked into Los Angeles Charges training camp on Thursday feeling at home, despite a head coach and training facility that were new to him. The six-time Pro Bowl wide receiver got to work two days after signing with the team that drafted him in 2013 after spending last season with the Chicago Bears.

RELATED: Chargers' hyped rookie getting pushed by former UDFADespite the surprise retirement of Mike Williams that spurred Allen’s comeback to the team he calls home, the Chargers hadn’t previously wasted any time maxing out roster space.

Los Angeles Chargers undrafted rookie quarterback DJ Uiagalelei had been wearing No. 13 through the first three weeks of training camp, including in the Hall of Fame Game last week. It never quite felt right.