"If anything, it proves my point from past year", Reid said.
"This defense's experience reminds me of my first two years in the league when we had a lot of veterans on the team and the defense played very well", said Reid, referring to his time in San Francisco when the team had a top-five defense and Reid went to the Pro Bowl as a rookie.
Veteran Da'Norris Searcy, who is under contract through 2019, started the first two games of the 2018 season before suffering a concussion that landed him on injured reserve.
Despite signing with the Panthers last season and this additional contract extension, Reid still has a collusion case pending against NFL owners, alleging that he wasn't signed last offseason as a direct result of his 2016 decision to kneel for the national anthem alongside former 49ers teammate Colin Kaepernick in protest of social and racial injustice.
"Knowing what I know my hope tank is on E [empty]", Reid said.
Kaepernick is still out of the league and Reid believes that won't change anytime soon.
"That was probably the toughest thing I've ever had to do - I've never been away from my family for that long, especially my daughters", said Reid.
"We always knew he was a solid football player", head coach Ron Rivera said during the season. "I'm just excited for my family's future".