He is 30 years old. He was drafted by the Jets back in 2014. He played four seasons in New York and he then signed with the Vikings in 2019.
Dozier played very nicely during his tenure in Minnesota and he could provide solid play in Chicago. At best, he could fight for a starting spot and at worst he will be a good backup piece.
This signing continues the trend of Ryan Poles taking a lot of players coming from inside the NFC North division... Not exactly sure if this is good or no but we will see when training camp start in August!