TORONTO -- The Toronto Argonauts signed American defensive back Johnny Sears Jr. to a one-year contract extension through the 2018 season Tuesday.

Sears, 30, started seven games for Toronto last season. registering 28 tackles, one sack, one forced fumble, one fumble recovery and one interception.

Sears has previous CFL experience with the Hamilton Tiger-Cats and Winnipeg Blue Bombers.