Updated

The Chicago Bears have agreed to a one-year contract extension with Lance Briggs, keeping the Pro Bowl linebacker through the 2014 season.

A person familiar with the situation says the new deal basically guarantees about $8 million over the next two years. The person spoke Wednesday on the condition of anonymity because the terms have not been released.

Briggs, whose contract would have expired in 2013, was scheduled to make nearly $4 million next season. Instead, he gets a $3 million bonus up front along with a $250,000 workout bonus and $3 million in salary.

His salary for 2013 is $4.5 million with $2 million guaranteed and $4.75 million for 2014. The deal also includes $250,000 workout bonuses in 2013 and 2014, plus roster bonuses of $1 million and $500,000 for those seasons.