Martin underwent knee surgery and was expected to miss several weeks, so this isn’t a big surprise.
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.
During his four-year career at Minnesota, Martin appeared in 45 games and recorded 177 tackles, three and a half sacks, four forced fumbles, and four interceptions.
Nickerson, 25, is a former sixth-round pick by the Jets in the 2018 NFL Draft out of Tulane. He is entering the second year of his four-year, $2,637,480 rookie contract when the Jets traded him to the Seahawks for a conditional 2020 seventh-round draft pick coming out of the preseason.
Seattle waived Nickerson and he later signed on to the Jaguars’ practice squad before being promoted to the active roster in December. Jacksonville waived him this past weekend.
In 2019, Nickerson appeared in four games for the Jaguars and recorded five total tackles, and no interceptions.