The Patriots have locked up running back Brandon Bolden and starting safety Patrick Chung to contract extensions on Friday, ESPN reports.

Bolden, a core special teams player, signed a two-year, $3.2 million contract extension through 2016. Chung, who returned to New England after spending the 2013 season with the Eagles, signed a three-year extension through 2017. The deal is worth up to $8.2 million and includes $3.4 million in guarantees, according to the report.