Both players are out for Thursday’s game against the 49ers and will likely be placed on the COVID-19 list later today.
High-risk close contacts with exposure to a player must isolate for five days, which means they can’t rejoin the team until Saturday.
Williams, 25, is a former fourth-round pick of the Packers back in 2017. He’s currently in the final year of his four-year, $2.96 million contract and stands to make a base salary of $735,000 for the 2020 season.
Williams will be an unrestricted free agent in 2021.
In 2020, Williams has appeared in seven games for the Packers and rushed for 294 yards on 68 carries (4.3 YPC) to go along with 23 receptions for 183 yards receiving and one touchdown.
Martin, 21, was a three-year starter at Minnesota and was an Honorable Mention All-Big Ten before being selected by the Packers in the fifth round.
Martin signed a four-year deal worth $3,566,063 that includes a signing bonus of $271,063.