Los Angeles Chargers WR Keenan Allen (hamstring), CB J.C. Jackson (ankle) and TE Donald Parham (hamstring) did not participate in practice Monday, Sept. 12. OT Rashawn Slater (back) and LB Drue Tranquill (back) practiced in full. The Chargers did not hold practice on Monday, so participation is an estimate.
Chargers.com