The NFL outfit Los Angeles Chargers put safety Nasir Adderly and cornerback Ryan Smith on the COVID-19 list on Friday.

It is not currently known whether Adderley and Smith tested positive or are close contacts of someone who did. According to the agreement between the league and players association, only unvaccinated players can be considered a close contact.

Adderly missed the team’s first of two joint practice sessions with the San Francisco 49ers on Thursday. His absence was attributed to migraines by the first-year coach Brandon Staley attributed to migraines.

Adderly was a second-round draft pick in 2019 from Delaware. He went on to start 14 games for the Chargers in the last NFL season and had 69 tackles, one interception, and one fumble recovery.

Smith had signed a one-year contract with the Chargers in March this year, an action aimed at help bolster the team’s special teams unit, which struggled badly last season. He made four tackles in 16 games for the Super Bowl champion Tampa Bay Buccaneers last season, playing 78% of their special teams snaps.

Smith was a fourth-round selection in 2016. in his career so far, Smith had 117 tackles, four forced fumbles, two fumble recoveries, and one interception in five seasons with the Buccaneers.

The Chargers worked out with the 49ers again on Friday before breaking training camp.