The Las Vegas Raiders brought in five free agents for tryouts on Monday, according to Albert Breer.
The full list of tryouts for the Raiders includes:
Addae, 30, wound up signing on with the Chargers as an undrafted free agent out of Central Michigan back in 2013. He managed to make the 53-man roster in each of his first three years in the NFL.
The Chargers elected to re-sign Addae to a four-year deal worth $22 million that included $8 million guaranteed back in 2017 but he was cut loose last March in a move that freed up $5 million of available cap space while creating $1 million in dead money.
Addae signed with the Texans on a one-year deal for the 2019 season.
In 2019, Addae appeared in all 16 games for the Texans and recorded 44 tackles, two interceptions and three pass defenses. Pro Football Focus has him rated as the No. 64 safety out of 86 qualifying players.
Zettel, 28, is a former sixth-round pick of the Lions back in 2016. He was entering the third year of his four-year, $2.463 million rookie contract when Detroit cut him loose at the start of the 2018 season.
The Browns quickly claimed him off waivers where he finished out the year. He was among Cleveland’s final roster cuts this preseason and was later on and off of the Bengals’ roster last year before the 49ers signed him to a contract in December.
Zettel signed on with the Vikings this past March, but was later released coming out of training camp.
In 2019, Zettel appeared in five games for the Bengals and 49ers, recording six total tackles and no sacks.