COSTA MESA, Calif. (AP) — The Los Angeles Chargers put safety Nasir Adderly and cornerback Ryan Smith on the COVID-19 list Friday. Adderly missed the first of two joint practices with the San Francisco 49ers on Thursday, which first-year coach Brandon Staley attributed to migraines. A second-round draft pick in 2019 from Delaware, Adderly started 14 games for the Chargers last season and had 69 tackles, one interception and one fumble recovery.